Introduction.

Snakebite envenoming is a relevant public health problem, and, in Colombia, it was included as a mandatory notification event since 2004. Because it is a tropical country with great ecosystem diversity, it occupies third place in Latin America, after Mexico and Brazil, reaching the highest number of snakebites.

Objective.

To carry out a retrospective analysis of snakebites in the department of Nariño based on the notifications reported to the Instituto Departamental de Salud de Nariño and the Sistema de Vigilancia en Salud Pública de Colombia between the years 2008 and 2017.

Materials and methods.

A descriptive and retrospective analysis was carried out based on the study, and interpretation of the information contained in the notification sheets for ophidian accidents of the Instituto Departamental de Salud de Nariño between the years 2008 and 2017. The snakebite frequency at the municipal level was represented by the elaboration of a map and the responsible genus were identified.

Results.

A total of 1,110 cases were reported for ophidian accidents. Seventy- eight point thirteen per cent of the municipalities made some notification. A pattern of constant increase in the case number during the 10 years is evident, with exception of 2017; the sociodemographic characteristics are maintained.

Conclusions.

The municipality of San Andrés de Tumaco, the masculine gender and the rural areas are mostly affected by snakebites, caused mainly by the Bothrops genus and the highest snakebite incidence was seen in July.

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