Abstract Objective To analyze the test results of avian influenza specimens in external environment of Meizhou′s poultry market during the period from 2017 to 2019, provide reasonable basis on the disease prevention and control.Methods From January 2017 to December 2019, 4176 specimens from external environment of Meizhou′s poultry market were obtained. Fluorescent quantitative PCR was applied to detect nuclein acid, H5, H7 and H9 subtypes of avian influenza A virus. Environmental pollution conditions were examined. Results Test results indicated that the detection rate of avian influenza A virus in 2018 was higher than that in 2017 and 2019. H5 and H9 infection rate was increased while H7 rate was decreased. The cases with virus subtypes from chopping board countertops, knife sticky boards,poultry manure, weighing pans were substantially increased. Conclusion Many virus subtypes are generated in the external environment of Meizhou poultry market, especially for those of animal slaughter and selling booths. Therefore, the disinfection system of poultry market environment shall be implemented for protection of focus groups.
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