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|data2 = Bhojani M. K. 1, Joglekar Aishwarya 2

|label3 = Reviewer

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|data3 = Basisht G.3,

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|data3 = [[Gopal Basisht|Basisht G.]]3,

|label4 = Editor

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|data4 = Deole Y.S.4

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|data4 = [[Yogesh Deole|Deole Y.S.]]4

|label5 = Affiliations

|data5 = 1 Department of Sharir Kriya, All India Institute of Ayurveda, New Delhi, India 2 Department of Department of Samhita Siddhant, All India Institute of Ayurveda, New Delhi, India 3 Rheumatologist, Orlando, Florida, U.S.A. 4 Department of Kayachikitsa, G. J. Patel Institute of Ayurvedic Studies and Research, New Vallabh Vidyanagar, Gujarat, India

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[[Jwara|Jwara]] is characterized as a condition affecting both physical and mental wellbeing. It is the chief disorder amongst all other [[Vyadhi|diseases]] affecting every living being at the time of birth and death. (Cha. Sa. [[Nidana Sthana|Nidana Sthana]] 1/35) Most of the epidemics related to infectious [[Vyadhi|diseases]] are types of influenza or are almost always associated with fever.<ref name="ref26">Microbial Threats I of M (US) F on. Infectious Disease Emergence: Past, Present, and Future [Internet]. Microbial Evolution and Co-Adaptation: A Tribute to the Life and Scientific Legacies of Joshua Lederberg: Workshop Summary. National Academies Press (US); 2009 [cited 2020 Apr 4]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK45714/</ref> Outbreak of Spanish Flu, dengue fever, swine flu, bird flu, typhoid, cholera, and even the present day COVID-19 are examples of [[Jwara|jwara]] that resulted in some or the other form of janapadodhvansa.<ref name="ref27">Baker RE, Mahmud AS, Miller IF, et al. Infectious disease in an era of global change. Nat Rev Microbiol. 2022;20(4):193-205. doi:10.1038/s41579-021-00639-z</ref> Sushruta (Su. Sa. [[Sutra Sthana|Sutra Sthana]] 6/21) on the other hand has also explained few other manifestations of maraka like [[Kasa Chikitsa|kasa]] (cough, bronchitis, lower respiratory tract infections), [[Shwasa|shwasa]] (respiratory infections, pneumonia), vamathu (gastric disturbance, nausea), pratishyaya (rhinitis, coryza or upper respiratory tract infections), shiroruja (headache) besides [[Jwara|jwara]]. These are also commonly observed infectious [[Vyadhi|diseases]] posing havoc in the community. Similarly, Sushruta mentions that the infection can also spread through surface contact with things like beddings, blankets, seating arrangement, vehicles, jewellery and accessories. (Su. Sa. [[Sutra Sthana|Sutra Sthana]] 6/21)

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== Management of janapadodhvansa ~~(Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/13-18)~~ ==

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== Management of janapadodhvansa ==

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Acharya Charaka mentions the need of collection of medicinal herbs and commodities which are important for supporting the [[Ayu|life]] in emergencies or epidemics beforehand, as there can be scarcity of the even most basic [[Ayu|life]] needs during such period. (Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/4~~) This~~ denotes the basis of disaster management and ~~organisation~~ of healthcare facilities during epidemics. The hospitals should be well prepared with all the emergency and required facilities to combat the [[Health|health]] consequences of disasters.<ref name="ref28">Hospital Preparedness for Epidemics [Internet]. [cited 2020 Apr 9]. Available from: https://www.who.int/publications-detail/hospital-preparedness-for-epidemics</ref> The principal line of treatment in the management of [[Vyadhi|diseases]] like [[Jwara|jwara]] is [[Pachana|pachana]] (medications enhancing digestion), [[Vamana|vamana]] (therapeutic emesis) and [[Apatarpana|apatarpana]] (depleting procedures). (Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/40) Ushnodaka (warm water) helps in achieving all the above criteria. It is also indicated for the treatment of [[Jwara|jwara]] as it pacifies [[Vata dosha|vata]] and [[Kapha dosha|kapha dosha]]. (Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/40) It facilitates digestion and relieves anorexia due to its [[Deepana|deepana]] (appetizing), [[Pachana|pachana (digestion)]] properties. It ~~satiatestrishna~~ (~~thirst~~), when consumed even in small quantities. Its consumption is especially indicated in management of conditions like [[Kasa Chikitsa|kasa (cough)]], peenasa (sinusitis), nava [[Jwara|jwara]] (pyrexia), [[Shwasa|shwasa]] (breathing abnormality), etc. which represent majority of infectious [[Vyadhi|diseases]].(Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 22/58) The generalized principles for management of janapadodhvansa include the measures for the promotion, preservation and correction of both physical and mental [[Health|health]]. The [[Panchakarma|panchakarma]] is the main line of treatment in these conditions. (Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/13) [[Vamana|Vamana]] is important for the radical removal of vitiated [[Dosha|dosha]] especially the [[Kapha dosha|kapha dosha]] and helps in pacifying the [[Jwara|jwara]] and nausea (hrillasa) related conditions associated with the infection. (Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 3/146) [[Virechana|Virechana]] also helps to evacuate the vitiated [[Dosha|dosha]] through the faeces and corrects the [[Agni|agni]] vitiation. (Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 3/169) [[Basti|Basti]] controls the vitiated [[Vata dosha|vata]] and helps in excretion of the toxins and ~~faecal~~ matter from the bowel region. (Cha. Sa. [[Siddhi Sthana|Siddhi Sthana]] 1/40) Due to [[Nasya|nasya]] or nasal instillation invading pathogens get adsorbed on the surface restricting their growth and further ~~progressiom~~. [[Nasya|Nasya]] is thus particularly useful in the treatment and prevention of respiratory tract infections. [[Snehana (unction therapy)|Snehana]] (internal administration of [[Ghee|ghee]] or oil) in form of go-ghrita ([[Ghee|ghee]]). [[Jwara|Jwara]] involves the obstruction of swedavaha strotas (body channels carrying sweat) hence it will help to expel the toxins by inducing the process of [[Swedana|swedana]]. (Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 3/130) [[Deepana|Deepana]] [[Pachana|pachana]] treatments play an important role at every step in management as maintenance of [[Agni|agni]] function is of prime importance in prevention of any [[Vyadhi|disease]]. [[Dhumapana|Dhoomapana]] is a treatment where the particulate matter in dhooma (medicated smoke) has anti-microbial activity and maintains integrity of respiratory tract. It is thus indicated in many respiratory conditions (Cha. Sa. [[Sutra Sthana|Sutra Sthana]] 5/27-32). [[Gandusha|Gandusha]] (Oil pulling), [[Kavala|kavala]] (gargling), dantapavana (brushing or cleaning of teeth) act as mechanical barriers by avoiding the entry of pathogens through the buccal cavity. [[Sharira|Sharira]] parimarjana (cleaning of body surface) and [[Snana|snana (bathing)]] measures contribute to cleansing of the body surfaces and also includes hasta, pada and mukha prakshalana i.e. hand and feet sanitization to prevent the spread of [[Vyadhi|disease]]. (Cha. Sa. [[Sutra Sthana|Sutra Sthana]] 5/93-94)

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Acharya Charaka mentions the need of collection of medicinal herbs and commodities which are important for supporting the [[Ayu|life]] in emergencies or epidemics beforehand, as there can be scarcity of the even most basic [[Ayu|life]] needs during such period. [Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/4,13-18] This denotes the basis of disaster management and organization of healthcare facilities during epidemics. The hospitals should be well prepared with all the emergency and required facilities to combat the [[Health|health]] consequences of disasters.<ref name="ref28">Hospital Preparedness for Epidemics [Internet]. [cited 2020 Apr 9]. Available from: https://www.who.int/publications-detail/hospital-preparedness-for-epidemics</ref> The principal line of treatment in the management of [[Vyadhi|diseases]] like [[Jwara|jwara]] is [[Pachana|pachana]] (medications enhancing digestion), [[Vamana|vamana]] (therapeutic emesis) and [[Apatarpana|apatarpana]] (depleting procedures). [Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/40] Ushnodaka (warm water) helps in achieving all the above criteria. It is also indicated for the treatment of [[Jwara|jwara]] as it pacifies [[Vata dosha|vata]] and [[Kapha dosha|kapha dosha]]. [Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/40] It facilitates digestion and relieves anorexia due to its [[Deepana|deepana]] (appetizing), [[Pachana|pachana (digestion)]] properties. It satiates thirst(trishna), when consumed even in small quantities. Its consumption is especially indicated in management of conditions like [[Kasa Chikitsa|kasa (cough)]], peenasa (sinusitis), nava [[Jwara|jwara]] (pyrexia), [[Shwasa|shwasa]] (breathing abnormality), etc. which represent majority of infectious [[Vyadhi|diseases]].[Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 22/58] The generalized principles for management of janapadodhvansa include the measures for the promotion, preservation and correction of both physical and mental [[Health|health]]. The [[Panchakarma|panchakarma]] is the main line of treatment in these conditions. [Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/13] [[Vamana|Vamana]] is important for the radical removal of vitiated [[Dosha|dosha]] especially the [[Kapha dosha|kapha dosha]] and helps in pacifying the [[Jwara|jwara]] and nausea (hrillasa) related conditions associated with the infection. [Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 3/146] [[Virechana|Virechana]] also helps to evacuate the vitiated [[Dosha|dosha]] through the faeces and corrects the [[Agni|agni]] vitiation. [Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 3/169) [[Basti|Basti]] controls the vitiated [[Vata dosha|vata]] and helps in excretion of the toxins and fecal matter from the bowel region. [Cha. Sa. [[Siddhi Sthana|Siddhi Sthana]] 1/40] Due to [[Nasya|nasya]] or nasal instillation invading pathogens get adsorbed on the surface restricting their growth and further progression. [[Nasya|Nasya]] is thus particularly useful in the treatment and prevention of respiratory tract infections. [[Snehana (unction therapy)|Snehana]] (internal administration of [[Ghee|ghee]] or oil) in form of go-ghrita ([[Ghee|ghee]]). [[Jwara|Jwara]] involves the obstruction of swedavaha strotas (body channels carrying sweat) hence it will help to expel the toxins by inducing the process of [[Swedana|swedana]]. [Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 3/130] [[Deepana|Deepana]] [[Pachana|pachana]] treatments play an important role at every step in management as maintenance of [[Agni|agni]] function is of prime importance in prevention of any [[Vyadhi|disease]]. [[Dhumapana|Dhoomapana]] is a treatment where the particulate matter in dhooma (medicated smoke) has anti-microbial activity and maintains integrity of respiratory tract. It is thus indicated in many respiratory conditions. [Cha. Sa. [[Sutra Sthana|Sutra Sthana]] 5/27-32] [[Gandusha|Gandusha]] (Oil pulling), [[Kavala|kavala]] (gargling), dantapavana (brushing or cleaning of teeth) act as mechanical barriers by avoiding the entry of pathogens through the buccal cavity. [[Sharira|Sharira]] parimarjana (cleaning of body surface) and [[Snana|snana (bathing)]] measures contribute to cleansing of the body surfaces and also includes hasta, pada and mukha prakshalana i.e. hand and feet sanitization to prevent the spread of [[Vyadhi|disease]]. [Cha. Sa. [[Sutra Sthana|Sutra Sthana]] 5/93-94]

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The [[Rasayana Adhyaya|rasayana chikitsa]] forms the backbone of treatment of janapadodhvansa as it is pivotal in enhancing the immune response to pathogenic external and internal invasion and stress. (Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/13) Different [[Rasayana|rasayana]] acting on pranavaha, rasavaha strotas, annavaha strotas depending on the [[Dosha|dosha]] and site involvement can thus be implemented for management of janapadodhvansa [[Vyadhi|vyadhi]]. Use of various [[Rasayana|rasayana]] like Chyavanaprasha [[Rasayana|rasayana]] (Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 1/1/62-74), Bramha [[Rasayana|rasayana]] (Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 1/1/41-57), [[Amalaki|Amalaki]] [[Rasayana|rasayana]] (Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 1/2/9-14) etc. are popular in clinical scenario for of maintenance of [[Health|health]] during pandemic conditions. Other non-pharmacological and psychotherapy based approaches like [[Sadvritta|sadvritta]] palana (following proper code of conduct) and behavioural attributes like satyabhashana (honesty), bhootadaya (compassion), bali (sacrifice), devata archana (devotion), daana (charity), vriddhopaseva (showing care and empathy towards the elderly) are mentioned to facilitate the social and mental [[Health|health]]. Providing support and care to people and families affected with pandemics is of vital importance to balance the psychological components of [[Health|health]] especially during the pandemic like conditions. (Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/15-16) [[Sadvritta|Sadvritta]] emphasizes on the spread and containment of the sansargajanya vyadhi (infectious [[Vyadhi|diseases]]) and their mode of transmission. (Cha. Sa. [[Sutra Sthana|Sutra Sthana]] 8/18) The [[Sadvritta|sadvritta]] focuses on various domains like physical [[Health|health]], social behaviour, psychological state, hygiene, food etiquettes thus providing holistic care. The treatment and preventive aspects of epidemics in purview of [[Ayurveda|ayurveda]] can be summarized in the following table-

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The [[Rasayana Adhyaya|rasayana chikitsa]] forms the backbone of treatment of janapadodhvansa as it is pivotal in enhancing the immune response to pathogenic external and internal invasion and stress. [Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/13] Different [[Rasayana|rasayana]] acting on pranavaha, rasavaha strotas, annavaha strotas depending on the [[Dosha|dosha]] and site involvement can thus be implemented for management of janapadodhvansa [[Vyadhi|vyadhi]]. Use of various [[Rasayana|rasayana]] like Chyavanaprasha [[Rasayana|rasayana]] [Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 1/1/62-74], Bramha [[Rasayana|rasayana]] [Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 1/1/41-57], [[Amalaki|Amalaki]] [[Rasayana|rasayana]] [Cha. Sa. [[Chikitsa Sthana|Chikitsa Sthana]] 1/2/9-14] etc. are popular in clinical scenario for of maintenance of [[Health|health]] during pandemic conditions. Other non-pharmacological and psychotherapy based approaches like [[Sadvritta|sadvritta]] palana (following proper code of conduct) and behavioural attributes like satyabhashana (honesty), bhootadaya (compassion), bali (sacrifice), devata archana (devotion), daana (charity), vriddhopaseva (showing care and empathy towards the elderly) are mentioned to facilitate the social and mental [[Health|health]]. Providing support and care to people and families affected with pandemics is of vital importance to balance the psychological components of [[Health|health]] especially during the pandemic like conditions. [Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/15-16] [[Sadvritta|Sadvritta]] emphasizes on the spread and containment of the sansargajanya vyadhi (infectious [[Vyadhi|diseases]]) and their mode of transmission. [Cha. Sa. [[Sutra Sthana|Sutra Sthana]] 8/18] The [[Sadvritta|sadvritta]] focuses on various domains like physical [[Health|health]], social behaviour, psychological state, hygiene, food etiquettes thus providing holistic care. The treatment and preventive aspects of epidemics in purview of [[Ayurveda|ayurveda]] can be summarized in the following table-

{| class="wikitable" style="text-align:justify;"

! style="text-align:left;" colspan="2"| Other measures to ensure the promotion of [[Health|health]]

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* [[Sadvritta|Sadvritta]] is the righteous code of conduct representing different aspects of hygiene, social conduct, morals and behaviour.

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* These measures include regular cleansing and trimming of nails (nakhakartana), hygiene and regular cleansing of external orifices (malayana [[Shodhana|shodhana]]), daily [[Snana|bath (snana)]], use of fragrances (gandhopasevana) in order to arrest the foul odour, to cover ones face while experiencing sneeze, laughter or yawn and avoiding touching of face and nasal area.(Cha. Sa. [[Sutra Sthana|Sutra Sthana]] 8/18-19)

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* These measures include regular cleansing and trimming of nails (nakhakartana), hygiene and regular cleansing of external orifices (malayana [[Shodhana|shodhana]]), daily [[Snana|bath (snana)]], use of fragrances (gandhopasevana) in order to arrest the foul odour, to cover ones face while experiencing sneeze, laughter or yawn and avoiding touching of face and nasal area.[Cha. Sa. [[Sutra Sthana|Sutra Sthana]] 8/18-19]

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| Shivanam upasevanaam (using means of protection)

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| Prayaschitta

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* As the adharma is considered to be important aspect in causation of janapadodhvansa, the ~~papakarma~~(..)can be alleviated through some form of prayaschitta or good deeds

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* As the adharma is considered to be important aspect in causation of janapadodhvansa, the papa karma(evil deeds)can be alleviated through some form of prayaschitta or good deeds

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| Japa (~~meditation~~), homa (sacred offering to fire), Ijya (sacred offerings)

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| Japa (muttering a prayer/chanting repeatedly), homa (sacred offering to fire), Ijya (sacred offerings)

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* This again includes performing the religious deeds and offerings to sacred fire which help to curb the negativity in the atmosphere and [[Manas|mind]].<ref name="ref35"> Nair RR. Agnihotra Yajna: A Prototype of South Asian Traditional Medical Knowledge. Journal of Acupuncture and Meridian Studies [Internet]. 2017 Apr 1 [cited 2023 Apr 23];10(2):143–50. Available from: https://www.sciencedirect.com/science/article/pii/S2005290116301728</ref>

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|}

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[[File:Management of ~~janapadodhvansa~~.jpg|center|Management of janapadodhvansa]]

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[[File:Management of janapadodhvansa1.jpg|center|1000px|Management of janapadodhvansa]]

== Contemporary and applied aspects of janapadodhvansa ==

The concept of janapadodhvansa incorporates various aspects leading to causation of large number of [[Vyadhi|diseases]] in large population or community. This further applies to the basics of public [[Health|health]] or community [[Health|health]] as mentioned in the [[Ayurveda|Ayurveda]] texts. Thus striking similarities can be found in principles of epidemiology and concept of janapadodhvansa or maraka according to [[Ayurveda|ayurveda]]. Some of these features are as mentioned below:

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<li style="font-weight:bold">Endemic nature of [[Vyadhi|diseases]]: In janapadodhvansa chapter it is mentioned that Punarvasu Atreya assembled with his disciples including Agnivesha at banks of the river Ganga in Panchal Pradesh (present Northern India including regions of Uttar Pradesh). This is important to understand the region specificity or occurrence of the endemic [[Vyadhi|diseases]] in the area. Endemic [[Vyadhi|disease]] is the one which is predominantly present in the population in the given area e.g. chickenpox, malaria.<ref name="ref36">Endemic Diseases-Types and Examples of Endemic Diseases [Internet]. BYJUS. [cited 2020 Apr 4]. Available from: https://byjus.com/biology/endemic-diseases/</ref> This concept can thus be correlated with medical topography which is the systematic surveying, mapping, charting, and description of specific geographical sites, with reference to the physical features that were presumed to influence [[Health|health]] and [[Vyadhi|disease]].<ref name="ref37">4 questions with answers in MEDICAL TOPOGRAPHY | Science topic [Internet]. [cited 2020 Apr 4]. Available from: https://www.researchgate.net/topic/Medical-Topography</ref> Some [[Vyadhi|diseases]] are more prevalent in northern hemisphere,, some in southern, some occur more commonly in tropical region. For instance, Plasmodium falciparum is the type of vector of malaria that is geographically located in the tropical and subtropical areas and is the most common cause of [[Vyadhi|disease]].<ref name="ref38">Darshan Babu, Pampanna Gouda UTILITY OF THE KNOWLEDGE OF DESHA – A CLINICAL PERSPECTIVE; International Ayurvedic Medical Journal; Volume 3; Issue 3; March- 2015; ISSN:2320 5091</ref> Charaka Samhita also describes three types of topographical conditions by dividing the [[Desha|desha]] into jangala, anupa and sadharana. (Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/47-48). Jangala [[Desha|desha]] (dry land) has less biota, scarce water resources, more wind and sunlight while anupa (marshy land) has abundant biota and flora, stagnant or scarce winds and lacks sunlight. Climatic conditions in jangala [[Desha|desha]] are considered optimum for [[Health|health]] and reduce the [[Vyadhi|disease]] occurrence than those in anupa [[Desha|desha]].</li>

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<li style="font-weight:bold">Endemic nature of [[Vyadhi|diseases]]: In janapadodhvansa chapter it is mentioned that Punarvasu Atreya assembled with his disciples including Agnivesha at banks of the river Ganga in Panchal Pradesh (present Northern India including regions of Uttar Pradesh). This is important to understand the region specificity or occurrence of the endemic [[Vyadhi|diseases]] in the area. Endemic [[Vyadhi|disease]] is the one which is predominantly present in the population in the given area e.g. chickenpox, malaria.<ref name="ref36">Endemic Diseases-Types and Examples of Endemic Diseases [Internet]. BYJUS. [cited 2020 Apr 4]. Available from: https://byjus.com/biology/endemic-diseases/</ref> This concept can thus be correlated with medical topography which is the systematic surveying, mapping, charting, and description of specific geographical sites, with reference to the physical features that were presumed to influence [[Health|health]] and [[Vyadhi|disease]].<ref name="ref37">4 questions with answers in MEDICAL TOPOGRAPHY | Science topic [Internet]. [cited 2020 Apr 4]. Available from: https://www.researchgate.net/topic/Medical-Topography</ref> Some [[Vyadhi|diseases]] are more prevalent in northern hemisphere, some in southern, some occur more commonly in tropical region. For instance, Plasmodium falciparum is the type of vector of malaria that is geographically located in the tropical and subtropical areas and is the most common cause of [[Vyadhi|disease]].<ref name="ref38">Darshan Babu, Pampanna Gouda UTILITY OF THE KNOWLEDGE OF DESHA – A CLINICAL PERSPECTIVE; International Ayurvedic Medical Journal; Volume 3; Issue 3; March- 2015; ISSN:2320 5091</ref> Charaka Samhita also describes three types of topographical conditions by dividing the [[Desha|desha]] into jangala, anupa and sadharana. (Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3/47-48). Jangala [[Desha|desha]] (dry land) has less biota, scarce water resources, more wind and sunlight while anupa (marshy land) has abundant biota and flora, stagnant or scarce winds and lacks sunlight. Climatic conditions in jangala [[Desha|desha]] are considered optimum for [[Health|health]] and reduce the [[Vyadhi|disease]] occurrence than those in anupa [[Desha|desha]].</li>

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<li style="font-weight:bold">Seasonal [[Vyadhi|diseases]]: The discussion was held in the months of spring and summer seasons (gharma maasa i.e. in the jyestha and aashadha maasa vis a vis vasanta and greeshma ritu). This evidence suggests that there was a possibility of outbreak of some kind of communicable [[Vyadhi|disease]] in that particular time and season in the described region. These seasons are homologous to spring and summer season which even in the present era witness the outbreak of various exanthemata’s, allergic conditions and different type of fever annually.<ref name="ref39">Martinez ME. The calendar of epidemics: Seasonal cycles of infectious diseases. PLOS Pathogens. 2018 Nov 8;14(11):e1007327</ref></li>

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<li style="font-weight:bold">Seasonal [[Vyadhi|diseases]]: The discussion was held in the months of spring and summer seasons (gharma maasa i.e. in the jyestha and aashadha maasa vis a vis [[Vasanta|vasanta]] and [[Grishma|greeshma ritu]]). This evidence suggests that there was a possibility of outbreak of some kind of communicable [[Vyadhi|disease]] in that particular time and season in the described region. These seasons are homologous to spring and summer season which even in the present era witness the outbreak of various exanthemata’s, allergic conditions and different type of fever annually.<ref name="ref39">Martinez ME. The calendar of epidemics: Seasonal cycles of infectious diseases. PLOS Pathogens. 2018 Nov 8;14(11):e1007327</ref></li>

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<li style="font-weight:bold">Epidemiological triad: Causative factors of janapadodhvansa can be compared to epidemiological triad which involves the external agent, susceptible host and environment. Interaction of these three components always leads to [[Vyadhi|disease]] causation in large population and can be applied to both communicable and non-communicable [[Vyadhi|diseases]].<ref name="ref40">Principles of Epidemiology | Lesson 1 - Section 8 [Internet]. 2019 [cited 2020 Apr 9]. Available from: https://www.cdc.gov/csels/dsepd/ss1978/lesson1/section8.html</ref> The concept of janapadodhvansa is similar to that of epidemic or pandemic, where epidemic is a condition affecting or tending to affect a disproportionately large number of individuals within a population, community, or region at the same time.<ref name="ref41">Definition of EPIDEMIC [Internet]. [cited 2020 Apr 4]. Available from: https://www.merriam-webster.com/dictionary/epidemic</ref> Pandemic is the condition occurring over a wide geographic area and affecting an exceptionally high proportion of the population.<ref name="ref42">Definition of PANDEMIC [Internet]. [cited 2020 Apr 4]. Available from: https://www.merriam-webster.com/dictionary/pandemic</ref> According to epidemiology, the causative factors affecting the contraction of [[Vyadhi|disease]] in population are similar to those mentioned in the chapter which includes geographic location ([[Desha|desha]]), climatic factors, biotic biological factors represented by plant related and zoological factors (vriksha (flora), mriga- pakshi (fauna)etc.) and abiotic or socioeconomic factors (janapada). The seasonality of [[Vyadhi|diseases]] is important factor for the epidemicoutbursts throughout the globe.<ref name="ref43">Components of the Triad | Models and Mechanisms of Public Health [Internet]. [cited 2020 Apr 4]. Available from: https://courses.lumenlearning.com/suny-buffalo-environmentalhealth/chapter/components-of-the-triad/</ref> The kala factor does play an important role in [[Vyadhi|disease]] manifestation. [[Desha|Desha]] as mentioned earlier is important while considering the epidemiology, as outbreak of some diseases are region specific and their spread or progression also depends on the geographical, demographical and climatic conditions. It is helpful to understand the prevalence and incidence of [[Vyadhi|diseases]] in the particular area. The description of vitiated air (vishama or vikrita vayu ) indicates climate change that increases the vulnerability of the populations to climate sensitive [[Health|health]] risks like injury, mortality, temperature related illness (both hyperthermia and hypothermia), respiratory illnesses, zoonosis, vector borne [[Vyadhi|diseases]], malnutrition, communicable [[Vyadhi|diseases]], mental and psychosocial [[Health|health]] etc.<ref name="ref44">Climate change and health [Internet]. [cited 2022 Jan 19]. Available from: https://www.who.int/news-room/fact-sheets/detail/climate-change-and-health</ref> Both atichala and atikundalinam vayu can be understood as fast blowing winds, cyclones, hurricanes or tornados that can result in public [[Health|health]] emergencies like storm related mortality, injury, infectious [[Vyadhi|diseases]], impairment of mental wellbeing due to socio-economic factors like displacement, unemployment, disruption of ecosystems etc.<ref name="ref45">James M. Shultz, Jill Russell, Zelde Espinel, Epidemiology of Tropical Cyclones: The Dynamics of Disaster, Disease, and Development, Epidemiologic Reviews, Volume 27, Issue 1, July 2005, Pages 21–35, https://doi.org/10.1093/epirev/mxi011</ref> Atiparusha vayu or overly dry air indicates lack of humidity or excessive dryness in air contributing to the physical [[Health|health]] related symptoms like dry eyes, itching of skin, dry throat etc. The stress on the nasal mucosa to humidify the entering air is intensified leading to be a major cause of respiratory disorders.<ref name="ref46">Wolkoff P. Indoor air humidity, air quality, and health – An overview. International Journal of Hygiene and Environmental Health. 2018 Apr 1;221(3):376–90.</ref> Atisheeta vayu or excessive cold air like that in air conditioned environments also poses a threat to increase in respiratory infections.<ref name="ref47">Hyrkäs-Palmu H, Ikäheimo TM, Laatikainen T, Jousilahti P, Jaakkola MS, Jaakkola JJK. Cold weather increases respiratory symptoms and functional disability especially among patients with asthma and allergic rhinitis. Sci Rep [Internet]. 2018 Jul 4 [cited 2020 Apr 5];8. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6031646/</ref> Epidemics like influenza have known to show a marked wintertime seasonality with over 2-3-month period within the months of November and March thus underlining the presence of cold air in atmosphere.<ref name="ref48">Lowen AC, Steel J. Roles of Humidity and Temperature in Shaping Influenza Seasonality. J Virol. 2014 Jul;88(14):7692–5.</ref> Atiabhishyandi or excessively humid air can intensify the heat and perspiration and trigger the respiratory conditions like asthma and COPD.<ref name="ref49">Choi SH, Lee SW, Hong YS, Kim SJ, Kim NH. Effects of atmospheric temperature and humidity on outbreak of diseases. Emerg Med Australas. 2007 Dec;19(6):501–8.</ref> Ati-ushna vayu indicates the excessive rise in temperature which can cause heat stress related conditions like heat exhaustion and can also be a resultant of climate change and heat waves. It can also result in excessive dehydration.<ref name="ref50">Kovats RS, Hajat S. Heat stress and public health: a critical review. Annu Rev Public Health. 2008;29:41–55.</ref> Asatmya [[Gandha|gandha]] indicates theodour pollution which is not only a determinant of environmental pollution but can also affect the physical [[Health|health]] of community. It can result in occurrence of symptoms like wheezing, asthma, cough, headache, nausea and even mental stress related outcomes like mood changes.<ref name="ref51">Tjalvin G, Magerøy N, Bråtveit M, Lygre Shl, Hollund Be, Moen Be. Odour as a determinant of persistent symptoms after a chemical explosion, a longitudinal study. Ind Health. 2017 Mar;55(2):127–37.</ref> The particulate matter or presence of pollutants in air is pressing problem due to advent of globalization and industrialization can also be correlated with asatmya [[Gandha|gandha]]. Exposure to particulate matter can lead to reduced lung function, development of lung [[Vyadhi|diseases]] like COPD, occupational lung [[Vyadhi|diseases]] and even death.<ref name="ref52">Kelly FJ, Fussell JC. Air pollution and public health: emerging hazards and improved understanding of risk. Environ Geochem Health. 2015;37(4):631–49.</ref> Dushita Jala (impure water) also acts a carrier or cause of many epidemiological and endemic disorders. Most intestinal or enteric [[Vyadhi|diseases]] are water borne infections. These are transmitted through faecal waste when the water is polluted by faecal matter.<ref name="ref53">Health impacts of water pollution [Internet]. [cited 2020 Apr 5]. Available from: http://edugreen.teri.res.in/explore/water/health.html</ref> Minamata Bay [[Vyadhi|disease]] is excellent example of possible outbreak of severe [[Vyadhi|disease]] through water pollution.<ref name="ref54">Harada M. Minamata disease: methylmercury poisoning in Japan caused by environmental pollution. Crit Rev Toxicol. 1995;25(1):1–24.</ref> Many water borne bacterial infections can result in occurrence of [[Vyadhi|disease]] like Typhoid(caused by Salmonella typhi), bacillary dysentery (caused by Shigella), viral infections like infectious hepatitis(Hepatitis A), Cholera(caused by Vibrio) and protozoal infections like amoebiasis, giardiasis etc. Upakranta and upaksheena Jalashaya indicate occurrence of famines and droughts. Droughts have far fetching consequences on the quality of public [[Health|health]] resulting in the rise in infectious and nutrition related [[Vyadhi|diseases]]. It results in shortage of drinking water and poor ~~waterquality~~ and lack of hygiene.<ref name="ref55">Health Implications of Drought | CDC [Internet]. 2020 [cited 2022 Jan 19]. Available from: https://www.cdc.gov/nceh/drought/implications.html</ref> Access to safe and quality drinking water is the prime necessity for livelihood. WHO has put forth guidelines and standards to rectify the quality of drinking water to safeguard the [[Health|health]] of population. Waterborne [[Vyadhi|diseases]] resulting from consumption of unhealthy drinking water poses a great threat to the high risk population like children, geriatric population, pregnant women and those suffering from debilitating [[Vyadhi|diseases]]. The water quality can be affected by microbial content, presence of impurities like heavy metals, faecal matter and other solvents making it unsafe for consumption.<ref name="ref56">World ~~[[Health|~~Health]] Organization. Guidelines for drinking-water quality: first addendum to the third edition, volume 1 : recommendations. Geneva: WHO; 2006.</ref> [[Desha|Desha]] dushti the third factor leading to causation of janapadodhvansa can be understood as soil pollution that results from exposure to soil with altered quality as there can be ingestion, inhalation or dermal absorption of the pollutants present in the soil.<ref name="ref57">Landrigan PJ, Fuller R. Environmental pollution: An enormous and invisible burden on health systems in low- and middle-income counties. World Hosp Health Serv. 2014;50(4):35–40.</ref> This factor is also affected by over- crowding which leads to the lack of hygiene and sanitation increasing the risk of spread of infectious disorders. It can result in overburdening of healthcare facilities and lack of sustainable development, further intensifying the environmental pollution. Ecosystems have direct or indirect impact on health as they are major source of food, water, supplies and even livelihood for the population.<ref name="ref58">Corvalán C, Hales S, McMichael AJ, Millennium Ecosystem Assessment (Program), World Health Organization, editors. Ecosystems and human well-being: health synthesis. Geneva, Switzerland: World Health Organization; 2005. 53 p. (Millennium ecosystem assessment)</ref> Disturbed ecosystems lead to the outbreak of various Zoonotic [[Vyadhi|diseases]]. For instance, the overabundance of vectors like makshika (flies), mashaka (mosquitos) can relate to the spread of vector borne [[Vyadhi|diseases]] like dengue and chikungunya. The natural disasters like ulka patina (meteors) and bhoomikapana (earthquakes) indicate the emphasis of Acharya on the physical, mental, social, economic burden caused by such mishaps on the millions of people increasing the incidence of morbidity and mortality due communicable [[Vyadhi|diseases]] as well. Kala factor is the most important amongst the aforesaid factors as it directly indicates the climate changes which is beyond intervention by human efforts. As mentioned earlier the spread and cause of infectious [[Vyadhi|diseases]] follows a cyclic or calendar pattern and seasonal changes can lead to sudden rise of epidemic outbreaks.<ref name="ref59">Martinez ME. The calendar of epidemics: Seasonal cycles of infectious diseases. PLOS Pathogens. 2018 Nov 8;14(11):e1007327.</ref>

+

<li style="font-weight:bold">Epidemiological triad: Causative factors of janapadodhvansa can be compared to epidemiological triad which involves the external agent, susceptible host and environment. Interaction of these three components always leads to [[Vyadhi|disease]] causation in large population and can be applied to both communicable and non-communicable [[Vyadhi|diseases]].<ref name="ref40">Principles of Epidemiology | Lesson 1 - Section 8 [Internet]. 2019 [cited 2020 Apr 9]. Available from: https://www.cdc.gov/csels/dsepd/ss1978/lesson1/section8.html</ref> The concept of janapadodhvansa is similar to that of epidemic or pandemic, where epidemic is a condition affecting or tending to affect a disproportionately large number of individuals within a population, community, or region at the same time.<ref name="ref41">Definition of EPIDEMIC [Internet]. [cited 2020 Apr 4]. Available from: https://www.merriam-webster.com/dictionary/epidemic</ref> Pandemic is the condition occurring over a wide geographic area and affecting an exceptionally high proportion of the population.<ref name="ref42">Definition of PANDEMIC [Internet]. [cited 2020 Apr 4]. Available from: https://www.merriam-webster.com/dictionary/pandemic</ref> According to epidemiology, the causative factors affecting the contraction of [[Vyadhi|disease]] in population are similar to those mentioned in the chapter which includes geographic location ([[Desha|desha]]), climatic factors, biotic biological factors represented by plant related and zoological factors (vriksha (flora), mriga- pakshi (fauna)etc.) and abiotic or socioeconomic factors (janapada). The seasonality of [[Vyadhi|diseases]] is important factor for the epidemicoutbursts throughout the globe.<ref name="ref43">Components of the Triad | Models and Mechanisms of Public Health [Internet]. [cited 2020 Apr 4]. Available from: https://courses.lumenlearning.com/suny-buffalo-environmentalhealth/chapter/components-of-the-triad/</ref> The [[Kala|kala]] factor does play an important role in [[Vyadhi|disease]] manifestation. [[Desha|Desha]] as mentioned earlier is important while considering the epidemiology, as outbreak of some [[Vyadhi|diseases]] are region specific and their spread or progression also depends on the geographical, demographical and climatic conditions. It is helpful to understand the prevalence and incidence of [[Vyadhi|diseases]] in the particular area. The description of vitiated air (vishama or vikrita vayu) indicates climate change that increases the vulnerability of the populations to climate sensitive [[Health|health]] risks like injury, mortality, temperature related illness (both hyperthermia and hypothermia), respiratory illnesses, zoonosis, vector borne [[Vyadhi|diseases]], malnutrition, communicable [[Vyadhi|diseases]], mental and psychosocial [[Health|health]] etc.<ref name="ref44">Climate change and health [Internet]. [cited 2022 Jan 19]. Available from: https://www.who.int/news-room/fact-sheets/detail/climate-change-and-health</ref> Both atichala and atikundalinam vayu can be understood as fast blowing winds, cyclones, hurricanes or tornados that can result in public [[Health|health]] emergencies like storm related mortality, injury, infectious [[Vyadhi|diseases]], impairment of mental wellbeing due to socio-economic factors like displacement, unemployment, disruption of ecosystems etc.<ref name="ref45">James M. Shultz, Jill Russell, Zelde Espinel, Epidemiology of Tropical Cyclones: The Dynamics of Disaster, Disease, and Development, Epidemiologic Reviews, Volume 27, Issue 1, July 2005, Pages 21–35, https://doi.org/10.1093/epirev/mxi011</ref> Atiparusha vayu or overly dry air indicates lack of humidity or excessive dryness in air contributing to the physical [[Health|health]] related symptoms like dry eyes, itching of skin, dry throat etc. The stress on the nasal mucosa to humidify the entering air is intensified leading to be a major cause of respiratory disorders.<ref name="ref46">Wolkoff P. Indoor air humidity, air quality, and health – An overview. International Journal of Hygiene and Environmental Health. 2018 Apr 1;221(3):376–90.</ref> Atisheeta vayu or excessive cold air like that in air conditioned environments also poses a threat to increase in respiratory infections.<ref name="ref47">Hyrkäs-Palmu H, Ikäheimo TM, Laatikainen T, Jousilahti P, Jaakkola MS, Jaakkola JJK. Cold weather increases respiratory symptoms and functional disability especially among patients with asthma and allergic rhinitis. Sci Rep [Internet]. 2018 Jul 4 [cited 2020 Apr 5];8. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6031646/</ref> Epidemics like influenza have known to show a marked wintertime seasonality with over 2-3-month period within the months of November and March thus underlining the presence of cold air in atmosphere.<ref name="ref48">Lowen AC, Steel J. Roles of Humidity and Temperature in Shaping Influenza Seasonality. J Virol. 2014 Jul;88(14):7692–5.</ref> Atiabhishyandi or excessively humid air can intensify the heat and perspiration and trigger the respiratory conditions like asthma and COPD.<ref name="ref49">Choi SH, Lee SW, Hong YS, Kim SJ, Kim NH. Effects of atmospheric temperature and humidity on outbreak of diseases. Emerg Med Australas. 2007 Dec;19(6):501–8.</ref> Ati-ushna vayu indicates the excessive rise in temperature which can cause heat stress related conditions like heat exhaustion and can also be a resultant of climate change and heat waves. It can also result in excessive dehydration.<ref name="ref50">Kovats RS, Hajat S. Heat stress and public health: a critical review. Annu Rev Public Health. 2008;29:41–55.</ref> Asatmya [[Gandha|gandha]] indicates theodour pollution which is not only a determinant of environmental pollution but can also affect the physical [[Health|health]] of community. It can result in occurrence of symptoms like wheezing, asthma, cough, headache, nausea and even mental stress related outcomes like mood changes.<ref name="ref51">Tjalvin G, Magerøy N, Bråtveit M, Lygre Shl, Hollund Be, Moen Be. Odour as a determinant of persistent symptoms after a chemical explosion, a longitudinal study. Ind Health. 2017 Mar;55(2):127–37.</ref> The particulate matter or presence of pollutants in air is pressing problem due to advent of globalization and industrialization can also be correlated with asatmya [[Gandha|gandha]]. Exposure to particulate matter can lead to reduced lung function, development of lung [[Vyadhi|diseases]] like COPD, occupational lung [[Vyadhi|diseases]] and even death.<ref name="ref52">Kelly FJ, Fussell JC. Air pollution and public health: emerging hazards and improved understanding of risk. Environ Geochem Health. 2015;37(4):631–49.</ref> Dushita Jala (impure water) also acts a carrier or cause of many epidemiological and endemic disorders. Most intestinal or enteric [[Vyadhi|diseases]] are water borne infections. These are transmitted through faecal waste when the water is polluted by faecal matter.<ref name="ref53">Health impacts of water pollution [Internet]. [cited 2020 Apr 5]. Available from: http://edugreen.teri.res.in/explore/water/health.html</ref> Minamata Bay [[Vyadhi|disease]] is excellent example of possible outbreak of severe [[Vyadhi|disease]] through water pollution.<ref name="ref54">Harada M. Minamata disease: methylmercury poisoning in Japan caused by environmental pollution. Crit Rev Toxicol. 1995;25(1):1–24.</ref> Many water borne bacterial infections can result in occurrence of [[Vyadhi|disease]] like Typhoid(caused by Salmonella typhi), bacillary dysentery (caused by Shigella), viral infections like infectious hepatitis(Hepatitis A), Cholera(caused by Vibrio) and protozoal infections like amoebiasis, giardiasis etc. Upakranta and upaksheena Jalashaya indicate occurrence of famines and droughts. Droughts have far fetching consequences on the quality of public [[Health|health]] resulting in the rise in infectious and nutrition related [[Vyadhi|diseases]]. It results in shortage of drinking water and poor water quality and lack of hygiene.<ref name="ref55">Health Implications of Drought | CDC [Internet]. 2020 [cited 2022 Jan 19]. Available from: https://www.cdc.gov/nceh/drought/implications.html</ref> Access to safe and quality drinking water is the prime necessity for livelihood. WHO has put forth guidelines and standards to rectify the quality of drinking water to safeguard the [[Health|health]] of population. Waterborne [[Vyadhi|diseases]] resulting from consumption of unhealthy drinking water poses a great threat to the high risk population like children, geriatric population, pregnant women and those suffering from debilitating [[Vyadhi|diseases]]. The water quality can be affected by microbial content, presence of impurities like heavy metals, faecal matter and other solvents making it unsafe for consumption.<ref name="ref56">World Health Organization. Guidelines for drinking-water quality: first addendum to the third edition, volume 1 : recommendations. Geneva: WHO; 2006.</ref> [[Desha|Desha]] dushti the third factor leading to causation of janapadodhvansa can be understood as soil pollution that results from exposure to soil with altered quality as there can be ingestion, inhalation or dermal absorption of the pollutants present in the soil.<ref name="ref57">Landrigan PJ, Fuller R. Environmental pollution: An enormous and invisible burden on health systems in low- and middle-income counties. World Hosp Health Serv. 2014;50(4):35–40.</ref> This factor is also affected by over- crowding which leads to the lack of hygiene and sanitation increasing the risk of spread of infectious disorders. It can result in overburdening of healthcare facilities and lack of sustainable development, further intensifying the environmental pollution. Ecosystems have direct or indirect impact on health as they are major source of food, water, supplies and even livelihood for the population.<ref name="ref58">Corvalán C, Hales S, McMichael AJ, Millennium Ecosystem Assessment (Program), World Health Organization, editors. Ecosystems and human well-being: health synthesis. Geneva, Switzerland: World Health Organization; 2005. 53 p. (Millennium ecosystem assessment)</ref> Disturbed ecosystems lead to the outbreak of various Zoonotic [[Vyadhi|diseases]]. For instance, the overabundance of vectors like makshika (flies), mashaka (mosquitos) can relate to the spread of vector borne [[Vyadhi|diseases]] like dengue and chikungunya. The natural disasters like ulka patina (meteors) and bhoomikapana (earthquakes) indicate the emphasis of Acharya on the physical, mental, social, economic burden caused by such mishaps on the millions of people increasing the incidence of morbidity and mortality due communicable [[Vyadhi|diseases]] as well. [[Kala|Kala]] factor is the most important amongst the aforesaid factors as it directly indicates the climate changes which is beyond intervention by human efforts. As mentioned earlier the spread and cause of infectious [[Vyadhi|diseases]] follows a cyclic or calendar pattern and seasonal changes can lead to sudden rise of epidemic outbreaks.<ref name="ref59">Martinez ME. The calendar of epidemics: Seasonal cycles of infectious diseases. PLOS Pathogens. 2018 Nov 8;14(11):e1007327.</ref>

</li></ol>

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== Recent ~~research work done with regard to janapadodhvansa~~ ==

+

== Recent researches ==

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As mentioned earlier the pandemics have been a pressing problems since centuries altogether. The published data suggests that there have three pandemics of plague (since 5th century AD) , 7 pandemics of cholera(17th century AD), Influenza related pandemics (17th century AD) like Russian Flu, Spanish Flu, Swine Flu, SARS (Severe Acute Respiratory Syndrome), MERS (Middle East Respiratory Syndrome) in the past and Covid 19 (21st century) being the most recent.<ref name="ref60">Piret J and Boivin G (2021) Pandemics Throughout History. Front. Microbiol. 11:631736. doi: 10.3389/fmicb.2020.631736</ref> The data from WHO sugggets that Covid 19 is still prevalent in most of the parts of the world and as of 9 April 2023 more than 762 million confirmed cases and over 6.8 million deaths have been reported globally.<ref name="ref61">Weekly epidemiological update on COVID-19 - 13 April 2023 [Internet]. [cited 2023 May 5]. Available from: https://www.who.int/publications/m/item/weekly-epidemiological-update-on-covid-19---13-april-2023</ref> The outbreak of COVID-19 pandemic attracted the attention of [[Ayurveda|ayurveda]] fraternity towards the concept of Janapadodhvansa and its importance in preservation of [[Health|health]] of entire community. Significant research work was thus carried out in this purview keeping janapadodhvansa in [[Manas|mind]]. Few such works are mentioned are mentioned belowHowever epidemiological assessment of various [[Hetu|Hetu]] and Lakshana should be done accordingly

+

As mentioned earlier the pandemics have been a pressing problems since centuries altogether. The published data suggests that there have three pandemics of plague (since 5th century AD), 7 pandemics of cholera(17th century AD), Influenza related pandemics (17th century AD) like Russian Flu, Spanish Flu, Swine Flu, SARS (Severe Acute Respiratory Syndrome), MERS (Middle East Respiratory Syndrome) in the past and Covid 19 (21st century) being the most recent.<ref name="ref60">Piret J and Boivin G (2021) Pandemics Throughout History. Front. Microbiol. 11:631736. doi: 10.3389/fmicb.2020.631736</ref> The data from WHO sugggets that Covid 19 is still prevalent in most of the parts of the world and as of 9 April 2023 more than 762 million confirmed cases and over 6.8 million deaths have been reported globally.<ref name="ref61">Weekly epidemiological update on COVID-19 - 13 April 2023 [Internet]. [cited 2023 May 5]. Available from: https://www.who.int/publications/m/item/weekly-epidemiological-update-on-covid-19---13-april-2023</ref> The outbreak of COVID-19 pandemic attracted the attention of [[Ayurveda|ayurveda]] fraternity towards the concept of Janapadodhvansa and its importance in preservation of [[Health|health]] of entire community. Significant research work was thus carried out in this purview keeping janapadodhvansa in [[Manas|mind]]. Few such works are mentioned are mentioned belowHowever epidemiological assessment of various [[Hetu|Hetu]] and Lakshana should be done accordingly

<ol style='text-align:justify;'><li>In the review article entitled “Scientific aspects of Janapadodhvansa [[Vyadhi|Vyadhi]] (epidemic disorders) according to [[Ayurveda|Ayurveda]] in the context to [[Jwara|Jwara]]—An epidemiological and Trisutra-based approach” authors have tried to throw light upon the scientific aspects of janapadodhvansa [[Vyadhi|vyadhi]] in light of epidemiology by correlating the epidemiological triad with trisutra i.e. epidemiological triad i.e. Host, agent and environment.<ref name="ref62">Joglekar AA, Vyas MK, Bhojani MK. Scientific aspects of Janapadodhwansa Vyadhi (epidemic disorders) according to Ayurveda in the context to Jwara—An epidemiological and Trisutra-based approach. J Indian Sys Medicine [serial online] 2022 [cited 2023 Apr 23];10:176-85. Available from: https://www.joinsysmed.com/text.asp?2022/10/3/176/357681</ref></li>

<li>Review article entitled “Conceptual study on Janapadodhvansa Roga and its treatment” focuses on the major causes of janapadodhvansa and purification of impure soil, water and air mentioned according to [[Ayurveda|Ayurveda]].<ref name="ref63">Anuradha G. Patil, Hemlata Krishnarao Belorkar, Conceptual study on Janapadodhvansa Roga and its treatment. J Ayu Int Med Sci. 2022;7(1):275-278.

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== Related Chapters ==

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Janapadodhvansaniya Vimana (Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3), [[Ritucharya|Ritucharya]] Adhyaya (Su. Sa. [[Sutra Sthana|Sutrasthana]] 6)

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Janapadodhvansaniya Vimana [Cha. Sa. [[Vimana Sthana|Vimana Sthana]] 3], [[Ritucharya|Ritucharya]] Adhyaya [Su. Sa. [[Sutra Sthana|Sutrasthana]] 6]

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