Aedes albopictus may not be vector of dengue virus in human epidemics in Brazil.
Over 60,500 dengue cases were reported in the state of Espírito Santo (ES), Brazil, between 1995 and 1998. The study's purpose was to identify whether Aedes albopictus was transmitting the dengue virus during an epidemic in the locality of Vila Beth nia (Viana County),Vitória, ES. From April 3 to 9, 1998, blood and serum samples were collected daily for virus isolation and serological testing. Four autochthonous cases were confirmed through DEN 1 virus isolation and two autochthonous cases through MAC ELISA testing. Of 37 Ae. aegypti and 200 Ae. albopictus adult mosquitoes collected and inoculated, DEN1 virus was isolated only from a pool of two Ae. aegypti female mosquitoes. The study results suggest that Ae. albopictus still cannot be considered an inter-human vector in dengue epidemics in Brazil.
Degallier
Nicolas
N
Laboratório Central, Secretaria Estadual da Saúde, Brasília, DF, Brazil. degallie@solar.com.br
Teixeira
Jos Marcus S crates
JM
Soares Sd
Sidinei da Silva
Sda S
Pereira
Regilene D
RD
Pinto
Santuzza C F
SC
Chaib Ad
Antonio de Jesus Melo
Ade J
Vasconcelos
Pedro F C
PF
Oliveira
Enilce
E
D000330:Aedes / Q000821:virology*; D000818:Animals; D001938:Brazil / Q000453:epidemiology; D003715:Dengue / Q000453:epidemiology / Q000635:transmission* / Q000821:virology; D003716:Dengue Virus / Q000302:isolation & purification*; D004196:Disease Outbreaks; D005260:Female; D006801:Humans; D007303:Insect Vectors / Q000821:virology*; D008297:Male; D013045:Species Specificity