Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1603/0022-2585(2008)45[1126:DVICDC]2.0.CO;2 |
Does Variation in Culex (Diptera: Culicidae) Vector Competence Enable Outbreaks of West Nile Virus in California? | |
Reisen, William K.; Barker, Christopher M.; Fang, Ying; Martinez, Vincent M. | |
通讯作者 | Reisen, William K. |
来源期刊 | JOURNAL OF MEDICAL ENTOMOLOGY
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ISSN | 0022-2585 |
EISSN | 1938-2928 |
出版年 | 2008 |
卷号 | 45期号:6页码:1126-1138 |
英文摘要 | Since the invasion of California by West Nile virus (family Flaviviridae, genus Flavivirus WNV) in 2003, we have annually monitored vector competence for the NY99 strain in Culex tarsalis Coquillett, Culex pipiens quinquefasciatus Say, Culex p. pipiens L., and Culex stigmatosoma Dyar populations from four areas: deserts of Coachella Valley, densely urbanized maritime Los Angeles, southern San Joaquin Valley in Kern County, and southern Sacramento Valley near Davis in Sacramento was the most competent vector species, followed by Cx. tarsalis and the Cx. pipiens complex. The median infections dose (ID50) of WNV required to infect 50% of the F1 female progeny reared from wild-caught females, a measure of mesenteronal susceptibility, ranged between 5 and 8 log(10) plaque forming units/ml and was not correlated with annual human case incidence or summer maximun likelihood mosquito infection estimates. Odds ratios comparing nonoutbreak years with referent outbreak years were variable and failed to show a distinct pattern for Cx. tarsalis or Cx. pipiens complex females. Apparently factors other than midgut susceptibility within the ranges we measured enabled WNV outbreaks in California. Culex populations remained competent for St. Louis encephalitis virus, indicating that the disappearance of this virus was not related to a loss of vector competence. |
英文关键词 | vector competence West Nile virus St. Louis encephalitis virus Culex tarsalis Culex pipiens complex |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000260661000021 |
WOS关键词 | LOUIS ENCEPHALITIS VIRUSES ; TARSALIS DIPTERA ; EQUINE ENCEPHALOMYELITIS ; NEW-YORK ; PIPIENS-QUINQUEFASCIATUS ; EXPERIMENTAL-INFECTION ; GENETIC-VARIATION ; AMERICAN CROWS ; HYBRID ZONE ; MOSQUITOS |
WOS类目 | Entomology ; Veterinary Sciences |
WOS研究方向 | Entomology ; Veterinary Sciences |
来源机构 | University of California, Davis |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/158323 |
作者单位 | Univ Calif Davis, Sch Vet Med, Dept Pathol Microbiol & Immunol, Ctr Vectorborne Dis, Davis, CA 95616 USA |
推荐引用方式 GB/T 7714 | Reisen, William K.,Barker, Christopher M.,Fang, Ying,et al. Does Variation in Culex (Diptera: Culicidae) Vector Competence Enable Outbreaks of West Nile Virus in California?[J]. University of California, Davis,2008,45(6):1126-1138. |
APA | Reisen, William K.,Barker, Christopher M.,Fang, Ying,&Martinez, Vincent M..(2008).Does Variation in Culex (Diptera: Culicidae) Vector Competence Enable Outbreaks of West Nile Virus in California?.JOURNAL OF MEDICAL ENTOMOLOGY,45(6),1126-1138. |
MLA | Reisen, William K.,et al."Does Variation in Culex (Diptera: Culicidae) Vector Competence Enable Outbreaks of West Nile Virus in California?".JOURNAL OF MEDICAL ENTOMOLOGY 45.6(2008):1126-1138. |
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