Transmission of endemic St Louis encephalitis virus strains by local Culex quinquefasciatus populations in Crdoba, Argentina

被引：27
|
作者：
Adrian Diaz, Luis [1 ,2 ,3 ]
Sebastian Flores, Fernando [1 ]
Beranek, Mauricio [1 ]
Elisa Rivarola, Maria [1 ]
Ricardo Almiron, Walter [2 ,3 ,4 ]
Silvia Contigiani, Marta [1 ]
机构：
[1] Univ Nacl Cordoba, Fac Ciencias Med, Lab Arbovirus, Inst Virol Dr JM Vanella, RA-5000 Cordoba, Argentina
[2] Univ Nacl Cordoba, Fac Ciencias Exactas Fis & Nat, Inst Invest Biol & Tecnol, Consejo Nacl Invest Cient & Tecn IIByT CONICET, RA-5000 Cordoba, Argentina
[3] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina
[4] Univ Nacl Cordoba, Fac Ciencias Exactas Fis & Nat, Ctr Invest Entomol Cordoba, RA-5000 Cordoba, Argentina
来源：
TRANSACTIONS OF THE ROYAL SOCIETY OF TROPICAL MEDICINE AND HYGIENE | 2013年 / 107卷 / 05期
关键词：
St Louis encephalitis virus; Culex quinquefasciatus; Mosquitoes; Viral strains; Vector competence; Crdoba; Argentina; WEST-NILE-VIRUS; GEOGRAPHIC-VARIATION; DIPTERA; CULICIDAE; VIRULENCE; OUTBREAK;
D O I：
10.1093/trstmh/trt023
中图分类号：
R1 [预防医学、卫生学];
学科分类号：
1004 ; 120402 ;
摘要：
St Louis encephalitis virus (SLEV) is a re-emerging human pathogen widely distributed in the American continent. Although it is not fully understood, the SLEV transmission network may involve Culex quinquefasciatus mosquitoes as vectors and Columbidae species as hosts. To calculate infection rates, we inoculated Cx. quinquefasciatus mosquitoes from Crdoba, Argentina by feeding them on viremic chicks. We observed differences in infection rate among the viral strains, the highest rate (78/87 mosquitoes, 90.8) being seen in strain 78V-6507. After re-feeding on susceptible chicks, mosquitoes were able to transmit the virus. Our findings suggest that Cx. quinquefasciatus populations are susceptible to and able to transmit different SLEV strains.
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页码：332 / 334
页数：3
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