Vector competence of Aedes albopictus from Virginia and Georgia for Chikungunya virus isolated in the Comoros Islands, 2005
Autor(es): McTighe Shane P, Vaidyanathan Rajeev
Resumo: We evaluated recently colonized samples from Virginia - Georgia (USA) of Aedes albopictus, an important vector of chikungunya virus (CHIKV), to determine whether they became infected with - transmitted COM125, a CHIKV isolate from the Comoros Isl-s. Seven days after imbibing an infective blood meal containing a minimum of 8.5×10(4) plaque-forming units (pfu)/mL, 31-86% of A. albopictus from the counties of Fairfax, Loudon, Rockingham, - Suffolk, Virginia, - Fulton, Georgia were infected. The average viral titer per mosquito was 1.1×10(4) pfu/mL (2×10(2)-3.3×10(4)). We detected CHIKV in salivary expectorate of infected mosquitoes from Rockingham (8%), Fulton (22%), - Loudon (48%) counties 7 days after blood feeding. Because CHIKV has no vaccines or specific antiviral treatments, vector control - education are critical to prevent its transmission. We discuss how local populations of A. albopictus could transmit CHIKV introduced to the southeastern USA from the Indian Ocean or Indian Subcontinent.
Imprenta: Vector Borne and Zoonotic Diseases, v. 12, n. 10, p. 867-871, 2012
Identificador do objeto digital: 10.1089/vbz.2012.0978
Descritores: Chikungunya virus - Pathogenesis ; Chikungunya virus - Viral infections ; Chikungunya Virus - Virus ; Chikungunya virus - Transmission ; Chikungunya virus - Vaccine ; Chikungunya virus - Public health
Data de publicação: 2012
