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首页> 外文期刊>The Veterinary Journal >Bovine herpesvirus type 1 (BHV-1) and bovine viral diarrhoea virus (BVDV) infections in dairy herds: Self clearance and the detection of seroconversions against a new atypical pestivirus
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Bovine herpesvirus type 1 (BHV-1) and bovine viral diarrhoea virus (BVDV) infections in dairy herds: Self clearance and the detection of seroconversions against a new atypical pestivirus

机译：奶牛群中的1型牛疱疹病毒（BHV-1）和牛病毒性腹泻病毒（BVDV）感染：自我清除和针对新型非典型瘟病毒的血清转化检测

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摘要

The epidemiology of bovine herpesvirus type 1 (BHV-1) and bovine viral diarrhoea virus (BVDV) was studied in a population of small dairy herds that had not been vaccinated. Bulk tank milk samples of 186 herds in Thailand were collected four times between 2002 and 2004. Serum samples from individual animals in 11 herds were also taken on three occasions. The prevalence of BHV-1 in the 186 herds was 61% in 2002, decreasing to 48% in 2004 and for BVDV was 91% in 2002, decreasing to 72% in 2004. A BVDV antigen-positive calf was found in one of the 11 herds, and animals in this herd and three other herds seroconverted to a recently described atypical BVDV strain (HoBi). This study showed a significantly decreasing prevalence for both BHV-1 and BVDV due to a self-clearance process. Further studies are needed to find out how the atypical BVDV strain entered the cattle population.
机译：在尚未接种疫苗的小型奶牛群中研究了1型牛疱疹病毒（BHV-1）和牛病毒性腹泻病毒（BVDV）的流行病学。在2002年至2004年之间，泰国共采集了186头牛群的大桶奶样品，共采集了四次。还分三次对11头牛群的动物进行了血清采样。 BHV-1在186个牛群中的患病率在2002年为61％，在2004年降至48％，而BVDV在2002年为91％，在2004年降至72％。 11个畜群以及该畜群中的动物和其他3个畜群被血清转化为最近描述的非典型BVDV株（HoBi）。这项研究表明，由于自清除过程，BHV-1和BVDV的患病率均显着降低。需要进一步研究以找出非典型BVDV株如何进入牛群。

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