title: [Dengue and its vectors in Brazil].
abstract: History of dengue in Brazil is covered from the first citations in the XIXth century to the great outbreaks of the last ten years. DEN-1 and DEN-4 viruses have been isolated for the first time in 1982 during an epidemic in Boa Vista, Roraima State. In 1986-1987, epidemics of dengue type 1 covered an extended area from Rio de Janeiro/Sào Paulo States to the North East States of Brazil. During 1990-1991, dengue type 2 epidemics have been notified in the South East (Rio de Janeiro/São Paulo) and in some States of the interior of the country (Mato Grosso do Sul, Tocantins). DEN-1 virus was also circulating the same year in São Paulo and Minas Gerais States. Recently (1994), an important outbreak has been studied in Ceará State, where DEN-2 and DEN-1 viruses have been isolated. In Rio de Janeiro and Ceara (1990 and 1994, respectively), it is probably the succession of infections by DEN-1 and DEN-2 viruses which has caused many DHF/DSS cases. The urban vector has always been the mosquito Aedes aegypti, from which 4, 7 and 16 strains of DEN-4, DEN-1 and DEN-2 have been isolated, respectively. In Brazil, transovarial transmission of dengue viruses by this species has not yet been shown to occur in nature.
authors.affiliation: Laboratoire d'épidémiologie des maladies à vecteurs, ORSTOM Centre de Montpellier BP 5045, France.
authors.forename: N
authors.initials: N
authors.lastname: Dégallier
authors.forename: A P
authors.initials: AP
authors.lastname: da Rosa
authors.forename: P F
authors.initials: PF
authors.lastname: Vasconcelos
authors.forename: L T
authors.initials: LT
authors.lastname: Figueiredo
authors.forename: J F
authors.initials: JF
authors.lastname: da Rosa
authors.forename: S G
authors.initials: SG
authors.lastname: Rodrigues
authors.forename: E S
authors.initials: ES
authors.lastname: da Rosa
mesh_terms: D000330:Aedes; D000818:Animals; D001938:Brazil / Q000453:epidemiology; D003715:Dengue / Q000453:epidemiology* / Q000635:transmission* / Q000821:virology; D003716:Dengue Virus / Q000145:classification / Q000302:isolation & purification; D004196:Disease Outbreaks; D006801:Humans; D007303:Insect Vectors