Outbreak of chikungunya fever in Thailand and virus detection in field population of vector mosquitoes, Aedes aegypti (L.) and Aedes albopictus Skuse (Diptera: Culicidae)
Autor(es): Thavara Usavadee, Tawatsin Apiwat, Pengsakul Theerakamol, Bhakdeenuan Payu, Chanama Sumalee, Anantapreecha Surapee, Molito Chusak, Chompoosri Jakkrawarn, Thammapalo Suwich, Sawanpanyalert Pathom, Siriyasatien Padet
Resumo: We investigated chikungunya fever outbreak in the southern part of Thail-. Human plasma specimens obtained from suspected patients - adult wild-caught mosquitoes were detected for chikungunya virus employing reverse transcriptase-polymerase chain reaction technique. Chikungunya virus was detected in about half of the blood specimens whereas a range of 5.5 to 100% relative infection rate was found in both sexes of the vector mosquitoes, Aedes aegypti (L.) - Ae. albopictus Skuse. The infection rate in Ae. albopictus was higher than in Ae. aegypti, with relative infection rate in male of both species being higher than in female. The appearance of chikungunya virus in adult male mosquitoes of both species reveals a role of transovarial transmission of the virus in field population of the mosquito vectors. These findings have provided further underst-ing of the relationship among mosquito vectors, chikungunya virus - epidemiology of chikungunya fever in Thail-.
Imprenta: The Southeast Asian Journal of Tropical Medicine and Public Health, v. 40, n. 5, p. 951-962, 2009
Descritores: Chikungunya virus - Pathogenesis ; Chikungunya virus - Viral infections ; Chikungunya virus - RT-PCR ; Chikungunya Virus - Virus ; Chikungunya virus - Transmission ; Chikungunya virus - Chikungunya fever ; Chikungunya virus - Epidemiology ; Chikungunya virus - Public health
Data de publicação: 2009
