Information and surveillance system of vesicular diseases in the Americas. Use of grid maps for monitoring, data collection and reporting.

Abstract

Methods for collecting, recording and reporting epidemio­ logical data on animal diseases were proposed. South American coun­ tries have used a quadrant system using geographical coordinates. Epi­ demiological information collected from local units by field veterina­ rians was recorded in code form and then transmitted to regional and national centres for analysis. Decisions in regard to surveillance and the prevention of animal diseases could then be taken. This system essentially applies to foot and mouth disease and other vesicular diseases but cannot be applied to other animal diseases. Various examples are given to show the epidemiological advantages of such a system which is common to several countries.