Chao Li, Jing Zhao, Wansheng Li, Hu Xu, Bangjun Gong, Qi Sun, Zhenyang Guo, Jinhao Li, Lirun Xiang, Yan-Dong Tang, Chaoliang Leng, Qian Wang, Jinmei Peng, Guohui Zhou, Huairan Liu, Tongqing An, Xuehui Cai, Zhi-Jun Tian, Hongliang Zhang
BACKGROUND: To investigate the prevalence and evolution of Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) at commercial fattening pig farms, a total of 1397 clinical samples were collected from a single fattening cycle at seven pig farms in five provinces of China from 2020 to 2021. RESULTS: The RT‒PCR results revealed that PRRSV was present on all seven farms, and the percentage of PRRSV-positive individuals was 17.54-53.33%. A total of 344 partial NSP2 gene sequences and 334 complete ORF5 gene sequences were obtained from the positive samples...
January 22, 2024: Porcine Health Management