Sự lưu hành của virus cúm gia cầm độc lực cao (HPAI) trên gia cầm sống được bán tại một số chợ thuộc địa bàn tỉnh Quảng tị năm 2016=Prevalence of highly pathogenic avian influenza (HPAI) virus in live poultry markets, in Quang Tri province, 2016

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Ngôn ngữ: vie

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Thông tin xuất bản: Tạp chí Khoa học kỹ thuật Thú y, 2019

Mô tả vật lý: tr.22

Bộ sưu tập: Báo, Tạp chí

ID: 551751

Thêm vào giỏ

Nghiên cứu được tiến hành trên 180 mẫu gộp dịch hầu-họng gia cầm và 60 mẫu gộp môi trường (30 mẫu phân và 30 mẫu nước) nhằm phát hiện sự hiện diện của virus cúm A/H5N1, H5N6, H7N9 trên địa bàn tỉnh Quảng Trị. Kết quả nghiên cứu cho thấy 18,33% (44/240 mẫu) dương tính với virus cúm A, 2,08% (5/240 mẫu) dương tính với H5N6
không phát hiện mẫu dương tính với H5N1 và H7N9. Tỷ lệ gia cầm dương tính với virus cúm A tại chợ Đông Hà là cao nhất: 29,17% (14/48 mẫu) và thấp nhất là chợ Diên Sanh: 10,42% (5/48 mẫu). Trong đó, sự lưu hành của virus cúm A subtype H5N6 tại chợ Hồ Xá và chợ Đông Hà là như nhau (4,16%), ở chợ Cầu là 2,08%
còn ở các chợ khác không thấy có sự hiện diện của chủng virus này. Tỷ lệ nhiễm virus cúm A trong các loại mẫu bệnh phẩm dịch hầu-họng vịt sống, dịch hầu-họng gà sống và mẫu phân tươi lần lượt là 17,77%
27,77% và 10%. Trong các loại mẫu giám sát thì chỉ thấy sự lưu hành virus cúm A/H5N6 ở dịch hầu-họng gà sống (5,55%). Tại Quảng Trị, sự lưu hành virus cúm A phổ biến vào tháng 10 (30%), tỷ lệ này giảm thấp vào tháng 5 (7,5%). Tuy nhiên, sự lưu hành virus cúm A/H5N6 lThe study was conducted on 180 pharynx swab samples and 60 environmental samples (30 fecal samples and 30 water samples) to detect the presence of Avian influenza type A/H5N1, H5N6, H7N9 viruses in some live poultry markets in Quang Tri province. The studied results showed that the positive sample rate with avian influenza type A virus was 18.33% (44/240 samples), of which 2.08% of samples (5/240 samples) were positive with subtype H5N6. All of the collected samples were negative with H5N1 and H7N9. The positive sample rate with influenza type A virus was highest (29.17%, 14/48 samples) in poultry samples collected from Dong Ha market and the lowest positive sample rate was at Dien Sanh market with 10.42% (5/48 samples). Meanwhile, the prevalence of A/H5N6 virus in Ho Xa and Dong Ha markets was highest (4.16%), followed by the Cau market (2.08%), and this subtype virus was not found in other markets. The prevalence of influenza A virus in the throat swab samples collecting in the live ducks, chickens and fresh feces were 17.77%, 27.77% and 10%, respectively. Among the monitoring samples, the prevalence of avian influenza A/H5N6 virus was only detected in the chicken throat swab samples (5.55%). In Quang Tri province, the prevalence of avian influenza A virus was highest in October (30%) and lowest in May (7.5%). However, the avian influenza A/H5N6 virus was only detected in September (5.0%) and July (2.5%), it was not found in the remaining studied months.

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