Abstract

Objective To understand the epidemic trend of Tibetan sheep plague in Guoluo Prefecture, Qinghai Province, we detected the plague F1 antibody in Tibetan sheep serum in this area. Methods Indirect hemagglutination test (IHA) and colloidal gold immunochromatography (GICA) were applied to test serum samples of Tibetan sheep which were separated from 5 ml whole blood drew from jugular vein in Maqin County, Maduo County, Gande County, Banma County, Jiuzhi County and Dari County in 2014 and 2015. Results We collected 1 481 serum samples, 566 from Maqin County, 315 from Maduo County, 150 from Gande County, 150 from Banma County, 150 from Jiuzhi County and 150 from Dari County. Totally 14 serum samples showed F1 antibody positive, the positive rate was 0.95% (14/1 481), and they were all from Maqin County. Conclusions This area has the prevalence of Tibetan sheep plague. Therefore, the monitoring work of Tibetan sheep plague should be strengthened. Key words: Plague; Tibetan sheep; Seroepidemiology

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