Reiskind Michael H, Pesko Kendra, Westbrook Catherine J, Mores Christopher N
Florida Medical Entomology Laboratory, University of Florida, Vero Beach, Florida 32960, USA.
Am J Trop Med Hyg. 2008 Mar;78(3):422-5.
Chikungunya virus (CHIKV) has caused recent, large epidemics on islands in the Indian Ocean, raising the possibility of more widespread CHIKV epidemics. Historically, CHIKV has been vectored by Aedes aegypti, but these outbreaks likely also involved Ae. albopictus. To examine the potential for an outbreak of CHIKV in Florida, we determined the susceptibility to CHIKV of F1 Ae. aegypti and Ae. albopictus from Florida. In addition, we also evaluated two well-characterized laboratory strains (Rockefeller and Lake Charles) of these species. We determined infection and dissemination rates as well as total body titer of mosquitoes 7 days post-exposure (pe) (Ae. albopictus) and 3, 7, and 10 days pe (Ae. aegypti). All mosquito strains were susceptible to both infection and dissemination, with some variation between strains. Our results suggest Florida would be vulnerable to transmission of CHIKV in urban and rural areas where the two vector species occur.
基孔肯雅病毒（CHIKV）近期在印度洋岛屿引发了大规模疫情，这增加了该病毒更广泛传播的可能性。从历史上看，CHIKV由埃及伊蚊传播，但这些疫情可能也涉及白纹伊蚊。为了研究佛罗里达州爆发CHIKV的可能性，我们测定了佛罗里达州F1代埃及伊蚊和白纹伊蚊对CHIKV的易感性。此外，我们还评估了这两个物种的两个特征明确的实验室品系（洛克菲勒品系和查尔斯湖品系）。我们测定了暴露后7天（白纹伊蚊）以及暴露后3天、7天和10天（埃及伊蚊）蚊子的感染率、传播率以及全身病毒滴度。所有蚊子品系对感染和传播均易感，品系之间存在一些差异。我们的结果表明，在这两种病媒物种共存的佛罗里达州城乡地区，CHIKV易于传播。
