Horizontal and Vertical Transmission of West Nile Virus Genotype NY99 by Culex salinarius and Genotypes NY99 and WN02 by Culex tarsalis

被引：57

作者：

Anderson, John F. ^{[1
,2
]}

Main, Andy J. ^{[3
]}

Cheng, Gong ^{[4
]}

Ferrandino, Francis J. ^{[5
]}

Fikrig, Erol ^{[4
,6
]}

机构：

[1] Connecticut Agr Expt Stn, Dept Entomol, New Haven, CT 06504 USA

[2] Connecticut Agr Expt Stn, Ctr Vector Biol & Zoonot Dis, New Haven, CT 06504 USA

[3] Amer Univ Cairo, Dept Biol, Cairo, Egypt

[4] Yale Univ, Sch Med, Dept Internal Med, Infect Dis Sect, New Haven, CT 06510 USA

[5] Connecticut Agr Expt Stn, Dept Plant Pathol, New Haven, CT 06504 USA

[6] Connecticut Agr Expt Stn, Howard Hughes Med Inst, New Haven, CT 06504 USA

来源：

AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE | 2012年 / 86卷 / 01期

关键词：

HOST FEEDING PATTERNS; NEW-YORK-CITY; VECTOR COMPETENCE; PIPIENS DIPTERA; MOSQUITOS; CULICIDAE; CONNECTICUT; SURVEILLANCE; TEMPERATURE; EMERGENCE;

D O I：

10.4269/ajtmh.2012.11-0473

中图分类号：

R1 [预防医学、卫生学];

学科分类号：

1004 ; 120402 ;

摘要：

Culex tarsalis is a superior horizontal and vertical vector of West Nile virus (WNV) compared with Culex salinarius. Culex salinarius transmitted WNV genotype NY99 (CT 2741-99 strain) horizontally to suckling mice at significantly lower rates than a. tarsalis on Days 8, 9, 1.0, and 12 post-infection, and Cx. salinarius transmitted WNV genotype NY99 to offspring at a lower vertical transmission infection rate than Cx. tarsalis. Culex tarsalis transmitted WNV genotypes NY99 and WN02 (CT S0084-08 strain) with equal efficiency. Daily percent horizontal transmission of genotype NY99 by Cx. tarsalis-infected per os and by intra-thoracic infection was not significantly different from daily transmission of genotype WN02 from Days 5-23 and Days 2-9 post-infection, respectively. Our findings do not support the previously published hypothesis that genotype NY99 was replaced in the New World by WN02 because of a shorter extrinsic incubation of WN02.

引用

页码：134 / 139

页数：6

共 48 条

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