Proceedings and papers of the ... Annual Conference of the Mosquito and Vector Control Association of California. Mosquito and Vector Control Association of California. Conference最新文献
In California, the Culex pipiens complex consists of Culex pipiens, Cx. quinquefasciatus, their hybrids and Culex pipiens form molestus. Using 15 microsatellite markers and a variety of statistical analyses of within- and among-population variation, there is widespread introgression throughout the Central Valley with mostly quinquefasciatus genotypes in the south and pipiens in the north. Those specimens in the Sacramento County area consisted primarily of pipiens-quinquefasciatus and pipiens-molestus hybrids. Populations in Coachella Valley and Los Angeles, CA and Benton, WA were Cx. quinquefasciatus and Cx. pipiens, respectively. Studies are underway to relate these genotypes to phenotypes of autogeny, diapause and vector competence for West Nile Virus.
{"title":"Complexity of the <i>Culex pipiens</i> complex in California.","authors":"L Kothera, B Nelms, H M Savage, W K Reisen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In California, the <i>Culex pipiens</i> complex consists of <i>Culex pipiens</i>, <i>Cx. quinquefasciatus</i>, their hybrids and <i>Culex pipiens</i> form <i>molestus.</i> Using 15 microsatellite markers and a variety of statistical analyses of within- and among-population variation, there is widespread introgression throughout the Central Valley with mostly <i>quinquefasciatus</i> genotypes in the south and <i>pipiens</i> in the north. Those specimens in the Sacramento County area consisted primarily of <i>pipiens</i>-<i>quinquefasciatus</i> and <i>pipiens</i>-<i>molestus</i> hybrids. Populations in Coachella Valley and Los Angeles, CA and Benton, WA were <i>Cx. quinquefasciatus</i> and <i>Cx. pipiens</i>, respectively. Studies are underway to relate these genotypes to phenotypes of autogeny, diapause and vector competence for West Nile Virus.</p>","PeriodicalId":90686,"journal":{"name":"Proceedings and papers of the ... Annual Conference of the Mosquito and Vector Control Association of California. Mosquito and Vector Control Association of California. Conference","volume":"80 ","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5502828/pdf/nihms865143.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35163419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
West Nile virus (WNV) reappeared in Kern County in late-May 2007, amplified rapidly and was detected concurrently by all surveillance methods. Enzootic activity during 2007 had some similarities to that of the previous three years, with 77 seropositive sentinel chickens in 9 flocks, 207 positive mosquito pools, 124 dead birds that tested positive, and 168 seropositive wild birds. WNV disease in equines remained infrequent, with only 4 cases reported. In contrast, Kern County had a significant increase in human disease, with 138 laboratory confirmed fever and neuroinvasive cases, combined incidence = 17.8 per 100,000 population. The standard surveillance indicators, sentinel chickens and mosquito pools, indicated that WNV enzootic activity was on the decline, yet there were epidemic numbers of human cases. During this fourth year of virus activity, WNV was found throughout Kern County on the floor of the Central Valley.
{"title":"West Nile Virus Activity in Kern County and the Factors Leading to the 2007 Outbreak.","authors":"Brian Carroll, Richard Takahashi, William Reisen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>West Nile virus (WNV) reappeared in Kern County in late-May 2007, amplified rapidly and was detected concurrently by all surveillance methods. Enzootic activity during 2007 had some similarities to that of the previous three years, with 77 seropositive sentinel chickens in 9 flocks, 207 positive mosquito pools, 124 dead birds that tested positive, and 168 seropositive wild birds. WNV disease in equines remained infrequent, with only 4 cases reported. In contrast, Kern County had a significant increase in human disease, with 138 laboratory confirmed fever and neuroinvasive cases, combined incidence = 17.8 per 100,000 population. The standard surveillance indicators, sentinel chickens and mosquito pools, indicated that WNV enzootic activity was on the decline, yet there were epidemic numbers of human cases. During this fourth year of virus activity, WNV was found throughout Kern County on the floor of the Central Valley.</p>","PeriodicalId":90686,"journal":{"name":"Proceedings and papers of the ... Annual Conference of the Mosquito and Vector Control Association of California. Mosquito and Vector Control Association of California. Conference","volume":"76 1","pages":"138-145"},"PeriodicalIF":0.0,"publicationDate":"2009-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4221851/pdf/nihms52115.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32802770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Proceedings and papers of the ... Annual Conference of the Mosquito and Vector Control Association of California. Mosquito and Vector Control Association of California. Conference
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