Abstract

The authors mentioned an epizootic  infection for the chronic upper respiratory diseases caused by béta – haemolytic Streptoccocus equi which have affected horses in two localities in Dakar and Rufisque areas (Dakar’s region) in Senegal, during rainy season in 2009. These studies has been done according to clinical aspects and bacteriological and hematological analysis of the samples. The disease has been observed at the end of the rainy season and looks like an aigue form which can evolute near guerison or death. That’s the first case observed and mentioned in Senegal.

Keys words: Bacteriology, chronic upper respiratory disease, dakar, dry season, hematology, infection, rainy season, Rufisque, Streptococcus, Senegal.