Enhanced environmental surveillance for avian influenza A/H5, H7 and H9 viruses in Guangxi, China, 2017–2019

Details

• Alternative Title:
  Biosaf Health
• Personal Author:
  Chen, Tao ; Tan, Yi ; Song, Ying ; Wei, Guangwu ; Li, Zhiqiang ; Wang, Ximing ; Yang, Jing ; Millman, Alexander J. ; Chen, Minmei ; Liu, Deping ; Huang, Tao ; Jiao, Ming ; He, Weitao ; Zhao, Xiuchang ; Greene, Carolyn M. ; Kile, James C. ; Zhou, Suizan ; Zhang, Ran ; Zeng, Xiaoxu ; Guo, Qian ; Wang, Dayan
• Description:
  We conducted environmental surveillance to detect avian influenza viruses circulating at live poultry markets (LPMs) and poultry farms in Guangxi Autonomous Region, China, where near the China-Vietnam border. From November through April 2017-2018 and 2018-2019, we collected environmental samples from 14 LPMs, 4 poultry farms, and 5 households with backyard poultry in two counties of Guangxi and tested for avian influenza A, H5, H7, and H9 by real-time reverse transcription-polymerase chain reaction (rRT-PCR). In addition, we conducted four cross-sectional questionnaire surveys among stall owners on biosecurity practices in LPMs of two study sites. Among 16,713 environmental specimens collected and tested, the median weekly positive rate for avian influenza A was 53.6% (range = 33.5% - 66.0%), including 25.2% for H9, 4.9% for H5, and 21.2% for other avian influenza viruses A subtypes, whereas a total of two H7 positive samples were detected. Among the 189 LPM stalls investigated, most stall owners (73.0%) sold chickens and ducks. Therefore, continued surveillance of the avian influenza virus is necessary for detecting and responding to emerging trends in avian influenza virus epidemiology.
• Keywords:
  Avian Influenza Virus Environmental Surveillance Live-poultry-market
• Source:
  Biosaf Health. 5(1):30-36
• Pubmed ID:
  39206216
• Pubmed Central ID:
  PMC11350926
• Document Type:
  Journal Article
• Funding:
  U01 IP001106/IP/NCIRD CDC HHSUnited States/ ; U19 GH001259/GH/CGH CDC HHSUnited States/
• Volume:
  5
• Issue:
  1
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha-512:f8fc3d92f6abf2072896086536b7524f6ef8b47b4f9d867c628aeaf36d55efe6b95ed8aa5ce9922c26ddc35f79a1e82e36255504df794a0ee3c418bce86f689a
• Download URL:
  https://stacks.cdc.gov/view/cdc/160670/cdc_160670_DS1.pdf
• File Type:
  [PDF - 646.98 KB ]