Blood sources of mosquitoes collected from Urban and Peri-Urban environments in eastern Australia with species-specific molecular analysis of avian blood meals
Autor(es): Jansen, Cassie C.; Webb, Cameron E.; Graham, Glenn C.; Craig, Scott B.; Zborowski, Paul; Ritchie, Scott A.; Russell, Richard C.; van den Hurk, Andrew F.
Resumo: To identify the hosts of mosquitoes collected from urban and peri-urban habitats in eastern Australia, 1,180 blood fed mosquitoes representing 15 species were analyzed by enzyme-linked immunosorbent assay and molecular techniques. Four common and epidemiologically important species could be classified according to their host-feeding patterns: Aedes aegypti was anthropophilic, Ae. vigilax was mammalophilic, Culex quinquefasciatus was ornithophilic, and Cx. annulirostris was opportunistic, readily feeding on birds and mammals. Mitochondrial cytochrome b DNA sequence data showed that more than 75% of avian blood meals identified from Cx. annulirostris collected from Brisbane, Newcastle, and Sydney originated from ducks (Order Anseriformes, Family Anatidae). More than 75% of avian blood meals from Cx. quinquefasciatus from Cairns belonged to one of three Passerine species, namely Sphecotheres vieilloti (figbird), Sturnus tristis (common myna), and Philemon buceroides (helmeted friarbird). This study demonstrates associations between vectors in Australia and vertebrate hosts of endemic and exotic arboviruses.
Palavras-Chave: Japanese encephalitis - Virus; Host - Feeding patterns; Murray valley encephalitis; West Nile -Virus; Aedes aegypti - Diptera; North American Birds; Cape York Peninsula; Ross river -Virus; Experimental - Infection; Entomological investigations
Imprenta: American Journal of Tropical Medicine and Hygiene, v. 81, n. 5, p. 849-857, 2009
Identificador do objeto digital: 10.4269/ajtmh.2009.09-0008
Descritores: Aedes aegypti - DNA
Data de publicação: 2009
