Autor(es)Renault P, Boidin E, D'Ortenzio E, Balleydier E, Daniel B, Filleul L

ResumoIn 2006, increased mortality due to leptospirosis in Reunion Isl- had alerted the authorities - justified the conduct of this study in order to update knowledge on the epidemiology of leptospirosis, whereas the latest epidemiological data published on the disease dated back to 2003. This study followed the scheme of a descriptive retrospective survey based on data from reporting - investigation of hospitalized cases of leptospirosis that occurred in Reunion between the 1st January 2004 - 31st December 2008. Data from the National Reference Center (NRC) have also been used. The annual number of reported cases (40 to 50) was stable over the period, which contrasted with the historical decreasing trend of incidence reported by the NRC. The circumstances of exposure were those usually associated with the disease on the isl-: about 80% of cases were infected between January - June, during the wet season; the main exposure factor identified was the practice of agriculture, declared or not; Leptospira icterohaemorrhagiae remained the most frequently isolated serovar, although regressing. Finally, our study has shown that excess mortality observed in 2006 did not result from an increased incidence but from a rise in the case fatality rate. This could be linked to the outbreak of chikungunya, which peaked in February 2006. In endemic areas of leptospirosis, health professionals should remain aware of the risk of occurrence of fatal cases during arbovirosis outbreaks.

Palavras-ChaveLeptospirosis; Epidemiology; Chikungunya; Case fatality rate; Reunion Island

ImprentaBulletin de la Socie?te? de Pathologie Exotique, v. 104, n. 2, p. 148-152, 2011

DescritoresChikungunya virus - Pathogenesis; Chikungunya virus - Proteins; Chikungunya virus - Antibodies; Chikungunya virus - Viral infections; Chikungunya Virus - Virus; Chikungunya virus - Chikungunya fever; Chikungunya virus - Epidemiology; Chikungunya virus - Immunology; Chikungunya virus - Public health

Data de Publicação:2011