Potential for stable flies and house flies (Diptera: Muscidae) to transmit Rift Valley fever virus
Autor(es): Turell Michael J, Dohm David J, Geden Christopher J, Hogsette Jerome A, Linthicum Kenneth J
Resumo: Rift Valley fever (RVF), a disease of ruminants - humans, has been responsible for large outbreaks in Africa that have resulted in hundreds of thous-s of human infections - major economic disruption due to loss of livestock - to trade restrictions. As indicated by the rapid spread of West Nile viral activity across North America since its discovery in 1999 - the rapid - widespread movement of chikungunya virus from Africa throughout the Indian Ocean Isl-s to Asia - Europe, an introduced exotic arbovirus can be rapidly - widely established across wide geographical regions. Although RVF virus (RVFV) is normally transmitted by mosquitoes, we wanted to determine the potential for this virus to replicate in 2 of the most globally distributed - common higher flies: house flies, Musca domestica, - stable flies, Stomoxys calcitrans. Neither species supported the replication of RVFV, even after intrathoracic inoculation. However, S. calcitrans was able to mechanically transmit RVFV to susceptible hamsters (Mesocricetus auratus) after probing on infected hamsters with high viral titers. Therefore, S. calcitrans, because of its close association with domestic animals that serve as amplifying hosts of RVFV, should be considered a possible mechanical vector of RVFV, - it may contribute to the rapid spread of a RVF outbreak. Other Stomoxys species present in Africa - elsewhere may also play similar roles.
Palavras-Chave: RVF; Vector; Mechanical transmission; North America; Emerging disease potential
Imprenta: Journal of the American Mosquito Control Association, v. 26, n. 4, p. 445-448, 2010
Identificador do objeto digital: 10.2987/10-6070.1
Descritores: Chikungunya virus - Arbovirus ; Chikungunya virus - Pathogenesis ; Chikungunya virus - Infectious diseases ; Chikungunya virus - Viral infections ; Chikungunya Virus - Virus ; Chikungunya virus - Transmission ; Chikungunya virus - Chikungunya fever ; Chikungunya virus - Public health
Data de publicação: 2010