Comprehensive molecular epidemiology of BVDV in yaks (<i>Bos gruniens</i>) in Qinghai, China: high prevalence and dominance of BVDV-1u.

ABSTRACT:

Introduction

Bovine viral diarrhea virus (BVDV) is a major pathogen affecting livestock health in China. However, the current epidemiological status in yaks (Bos grunniens), particularly in Qinghai Province, remains insufficiently understood.

Methods

In the present study, a comprehensive serological and molecular investigation of BVDV in yaks was conducted across broad geographic areas of eight administrative regions including Yushu, Guoluo, Huangnan, Hainan, Haidong, Haixi, Haibei, and Xining in Qinghai Province.

Results

The results revealed widespread BVDV exposure in Qinghai yak, with an overall antibody prevalence of 84.52% (1158/1370) and substantial herd variation (12.00~98.07%). Active infections were confirmed through antigen detection, revealing preval

SUBMITTER: Li Z 

PROVIDER: S-EPMC12391088 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature