| [persistence of an endemic circulation of the west nile virus in madagascar]. | the wide geographic distribution of the west nile virus and the increase in virulence observed since 1994 in the mediterranean basin, central europe and north america, with several outbreaks of lethal encephalitis, demonstrate the importance of regular surveillance of the epidemiological data regarding this virus in the world. the institut pasteur de madagascar has shown between 1975 and 1990 that this arbovirus was most abundant in madagascar, where it had an endemic circulation. there has been ... | 2003 | 15678813 |