| mayaro virus: imported cases of human infection in são paulo state, brazil. | mayaro virus (mayv) is an arbovirus (togaviridae: alphavirus) enzootic in tropical south america and maintained in a sylvan cycle involving wild vertebrates and haemagogus mosquitoes. mayv cases occur sporadically in persons with a history of recent activities inside or around forests. this paper reports three cases of mayv fever detected in men infected in camapuã, ms, brazil. serum samples collected at four days and two months after the onset of the symptoms and examined by hemagglutination in ... | 2007 | 17823750 |