Tao Zhou

Chinese Center For Disease Control And Prevention, Beijing, Beijing Shi, China

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Publications (2)0 Total impact

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    ABSTRACT: A total of 54,673 mosquitoes were collected at 11 sites located near the China-Myanmar border in the western part of Yunnan Province during July and August 2007. There were 29 species in 4 genera identified from the collections, including 12 species of Culex, 12 species of Anopheles, 3 species of Aedes, and 2 species of Armigeres. Culex tritaeniorhynchus Giles (67.9%, 37,119/54,673) and Anopheles sinensis Wiedemann (25.9%, 14,170/54,673) were the most abundant species in this investigation. Virus was isolated using BHK-21 and C6/36 cells from 22 of 510 mosquito pools. Isolates included Japanese encephalitis virus (JEV) and Getah virus (GETV), which were identified by serological and molecular methods. Twenty JEV strains were isolated from Cx. tritaeniorhynchus (15 isolates), An. sinensis (3 isolates), and Armigeres subalbatus Coquillett (2 isolates), and 2 GETV strains were isolated from Culex pseudovishnui Colless and Cx. tritaeniorhynchus. This study suggests that Ar. subalbatus is a potentially important local vector because of the high JEV infection ratio found in this species. Enzootic JEV transmission persists in this area and therefore, surveillance for human disease caused by JEV and GETV should be conducted in the region.
    05/2012; 65(3):215-21. DOI:10.7883/yoken.65.215
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    ABSTRACT: To investigate arboviruses in Wenshan and Hekou county which are the Sino-Vietnam frontier regions of Wenshan, Yunnan province, China. In September 2007, 6091 Culicines, 1334 Anophelines, 848 Aedes vexans and 53 Armigeres obturbans were collected from 5 field sites. Mosquitoes were collected and stored in liquid nitrogen after classification. The mosquito pools were homogenized, and centrifuged, then the supematant was inoculated onto C6/36 and BHK-21 cells, and the viral isolates were identified by serological and molecular biological methods.Sequence alignment and phylogenetic analysis on the viral isolates were carried out using Clustal X 1.85, GENEDOC and MEGA4 software. A total of 4 pairs of virus isolated with C6/36 cells cytopathic effect were observed, and other mosquito species have not cytopathic effect.Strain WS0704-2 was Banna virus which identified by antibody response and PCR. Strain WS0704-1, WS0708-1, WS0708-2 were Culex pipens pallens densovirus (CppDNV) which identified by PCR. The phylogenetic analysis the 12th segment showed significant difference between the new Banna virus and other strains isolated in China. There are many mosquito vectors in frontier regions (China and Vietnam) of Wenshan in Yunnan province of China, and mosquito-borne arbovirus, such as BAV were isolated here.
    Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine] 12/2009; 43(12):1086-90.

Publication Stats

8 Citations


  • 2009
    • Chinese Center For Disease Control And Prevention
      • Institute for Viral Disease Control and Prevention
      Beijing, Beijing Shi, China