Problem Definition

According to World Health Organization (WHO), snake bites are considered as a neglected tropical disease. South Asia is severely affected by snake bites compared to the rest of the world. Sri Lanka, one of the countries in South Asia is well known as one of the biodiversity hotspots in the world. Compared to other diseases Snake bite has become a common thing found in Sri Lanka although it may threaten the life of the victim. Species richness of Sri Lanka includes 92 species of snakes,but out of these only seven venomous species cause higher occurrence of snake bite assisted morbidity and mortality in Sri Lanka.The  Most venomous snakes found in Sri Lanka are, 
Cobra (Naja naja) :  https://en.wikipedia.org/wiki/Naja

Common krait (Bungarus caeruleus): https://en.wikipedia.org/wiki/Common_krait

Sri Lanka krait (Bungarus ceylonicus): https://en.wikipedia.org/wiki/Sri_Lankan_krait

Tropical (Daboia russelli): https://en.wikipedia.org/wiki/Daboia

Saw scaled viper (Echis carinatus): https://en.wikipedia.org/wiki/Echis_carinatus

Hump nosed viper (Hypnale hypnale) https://en.wikipedia.org/wiki/Hypnale_hypnale

Green pit viper (Trimeresurus trigonocephalus):  https://en.wikipedia.org/wiki/Trimeresurus_trigonocephalus

In most cases of snake bites, above stated species are life threatening to the victims.

Major reasons of high rate of snake bites in this country

• Extensive field related agricultural practices
• Working in  paddy fields and forests
• Lack of toilet facilities in rural areas
• Low income families
• Presence of small rodents which inhabit  hidden areas of houses and fields
• Nocturnal and night biting behavior of kraits
• Diurnal and day time biting behavior of viperids and cobras
• Absence of protective leg coverings or shoes in field workers
• Lack of knowledge regarding the venomous snake bites and its consequences

Refererences: wikipedia