Retrospective study on epidemiology of snakebites in Sarpang District, southern Bhutan

Main Article Content

Bal Krishna Koirala
https://orcid.org/0000-0002-3447-1922
Jaganath Koirala
https://orcid.org/0000-0003-2564-4913
Sunil Sapkota
https://orcid.org/0000-0001-7943-6699

Abstract

Although snake bite envenomation is considered as a medical emergency with significant morbidity and mortality, accurate figures on snakebite envenomation remains scarce.  We conducted a retrospective study to evaluate the snakebite epidemiology in Sarpang District located in the subtropical zone of southern Bhutan.  In this study, 78 snakebite cases treated in Gelephu Referral Hospital over a period of three years from 2013 to 2015 were evaluated based on the statistical record maintained by the medical administration.  Twenty-eight (35.89%) cases developed signs and symptoms of envenomation and the remaining 50 (64.01%) were found to be cases of non-venomous bites.  Forty-four males and 34 females were found to be affected by snakebites within the period.  While snakebites were observed in all age groups, the large majority (n=51, 65.38%) were in adults aged between 21 and 50 years.  Most of the venomous bites (68%) occurred during the monsoon season, particularly between May and August.  It was found that adults in the economically productive age group were the ones most affected by poisonous bites.  There is an urgent need for development and adoption of snakebite management guidelines and awareness among the vulnerable sections of the population, improvement of medical facilities in referral hospitals and rural health centres, and reduction of the morbidity and mortality associated with snakebites.

Article Details

How to Cite
[1]
Koirala, B.K., Koirala, J. and Sapkota, S. 2018. Retrospective study on epidemiology of snakebites in Sarpang District, southern Bhutan. Journal of Threatened Taxa. 10, 13 (Nov. 2018), 12749–12754. DOI:https://doi.org/10.11609/jott.3882.10.13.12749-12754.
Section
Communications
Author Biographies

Bal Krishna Koirala, Jigme Dorji National Park, Department of Forests and Park Services, P.O box 13001, Gasa 13001, Bhutan

B.K. Koirala is forester by profession and currently working as Sr. Forest Ranger in Jigme Dorji National Park, under Department of Forests and Park Services. He looks after Species Conservation and Monitoring Section in Park’s Headquarter, Damji, Gasa. His areas of interest include biodiversity documentation, particularly in the field of herpetofauna. Currently engage in small scale project on species diversity and spatial distribution of amphibians of Jigme Dorji National Park. 

Jaganath Koirala, Sherubtse College, School of Life Science, Royal University of Bhutan, P.O. box 42002, Kanglung, Tashigang 42002, Bhutan

Jaganath Koirala has completed BSc in Live Science from Sherubtse College, Royal University of Bhutan Kanglung, Tashigang. His areas of interest include biodiversity documentation and wildlife conservation. Currently engage in helping research activities mainly in the field of herpetofauna. 

Sunil Sapkota, College of Natural Resources, Department of Forestry, Lobesa, P.O box 13001, Kuruthang, Punakha 13001, Bhutan

Sunil Sapkota started his career as a volunteer snake rescuer since 2008 by rescuing snakes in the vicinity of Chitwan National Park, Nepal. He is doing BSc degree in forestry, final year student of forestry faculty in College of Natural Resources under Royal University Bhutan. Currently he is also active volunteer snake rescuer in locality.

References

Alirol, E., S.K. Sharma, H.S. Bawaskar, U. Kuch & F. Chappuis (2010). Snake bite in south Asia: a review. PLoS Neglected Tropical Diseases 4(1): e603; https://doi.org/10.1371/journal.pntd.0000603

Ariaratnam, C.A., M.H. Sheriff, R.D. Thomaston & D.A. Warrell (2008). Distinctive epidemiologic and clinical features of Common Krait (Bungarus caeruleus) bites in Sri Lanka. The American Journal of Tropical Medicine and Hygiene 79: 458–462.

Chippaux, J.P. (1998). Snake bites: appraisal of the global situation. Bulletin of the World Health Organization 76(5): 515–524.

Das, I. (2012). A Naturalist’s Guide to the Snakes of southeast Asia: Malaysia, Singapore, Thailand, Myanmar, Borneo, Sumatra, Java and Bali. John Beaufoy Publishing Ltd., Oxford, 176pp.

Holve, S. (2007). Envenomations, pp. 2932–2935. In: Behrman, R.E., R.M. Kliegman, H.B. Jenson & B.F. Stanton (eds.). Nelson Textbook of Pediatrics, 18th Edition. W.B. Saunders Company, 3200pp.

Joshi, D.D. (2010). An epidemiological study of snake bite cases in children of Nepal. journal of the Nepal Paediatric Society 30(3): 135–140.

Kasturiratne, A., A.R. Wickremasinghe, N. de Silva, N.K. Gunawardena & A. Pathmeswaran (2008). The global burden of snakebite: a literature analysis and modelling based on regional estimates of envenoming and deaths. PloS Med 5(11): 218; https://doi.org/10.1371/journal.pmed.0050218

National Statistics Bureau (2016). Statistical Yearbook of Bhutan. Royal Government of Bhutan. Kuensel Corporation Ltd., Thimphu, vi+325pp.

Pandey, D.P. (2006). Epidemiology of snake bites based on hospital survey in Chitwan and Nawalparasi districts. Journal of Nepal Health Research Council 4(2): 51–57.

Pincheira-Donoso D., A.M. Bauer, S. Meiri & P. Uetz (2013). Global taxonomic diversity of living reptiles. PLoS ONE 8(3): e59741; https://doi.org/10.1371/journal.pone.0059741

Pore, S.M., S.J. Ramanand, P.T. Patil, A.D. Gore, M.P. Pawar, S.L. Gaidhankar & R.R. Ghanghas (2015). A retrospective study of use of polyvalent anti-snake venom and risk factors for mortality from snake bite in a tertiary care setting. Indian Journal of Pharmacology 47(3): 270–274; httsp://doi.org/10.4103/0253-7613.157117

Poudyal, V.P., K.M. Paudel, N.B. Rana & S. Adhikari (2016). A hospital based study on snake bite poisoning in adults in the western region of Nepal. Journal of Chitwan Medical College 6(3): 33–38; https://doi.org/10.3126/jcmc.v6i3.16697

Suleman, M.M., S. Shahab & M.A. Rab (1998). Snake bite in the Thar Ddesert. Journal of Pakistan Medical Association 48(10): 306–308.

Wangyal, J.T. & D.B. Gurung (2017). Reptiles of Bhutan, pp. 39–55. In: Katel, O. & D.B. Gurung (eds.). An Introduction to the Biodiversity of Bhutan in the Context of Climate Change and Economic Development. Centre for Rural Development Studies, College of Natural Resources, Lobesa, Punakha, 200pp.

Warrell, D.A. (2010). Guidelines for the Management of Snake-bites. World Health Organization, Regional Office for Southern East Asia, Indraprastha Estate, Mahatma Gandhi Marg, New Delhi, vii+162pp.