NATURAL VERTICAL TRANSMISSION OF WESTERN EQUINE ENCEPHALOMYELITIS VIRUS IN MOSQUITOS

被引:38
作者
FULHORST, CF
HARDY, JL
ELDRIDGE, BF
PRESSER, SB
REEVES, WC
机构
[1] UNIV CALIF BERKELEY,SCH PUBL HLTH,BERKELEY,CA 94720
[2] UNIV CALIF DAVIS,DEPT ENTOMOL,DAVIS,CA 95616
关键词
D O I
10.1126/science.8303276
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The mechanism by which western equine encephalomyelitis (WEE) virus and other mosquito-borne alphaviruses (Togaviridae) survive during periods of vector inactivity is unknown. Recently, three strains of WEE virus were isolated from adult Aedes dorsalis collected as larvae from a salt marsh in a coastal region of California. This provides evidence of vertical transmission of WEE virus in mosquitoes in nature. Vertical transmission in Ae. dorsalis and closely related mosquito species may be an important mechanism for the maintenance of WEE virus in temperate regions in North America where horizontal transmission of the virus is seasonal.
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页码:676 / 678
页数:3
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