molecular epidemiology of pseudorabies virus in yunnan and the sequence analysis of its gd gene.outbreaks of pseudorabies (prs) have occurred in yunnan, china, which caused significant economic loss. to determine the prevalence and origin of pr in yunnan, especially among vaccinated pigs, overall 791 samples of blood, tissue, semen, and sera were analyzed by serological methods, pcr, and sequence analysis of gd gene. detection with viral gi antibody or pcr showed that the yearly positive rates of pr virus (prv) in yunnan from 2010 to 2014 were 48.15, 21.26, 2.17, 5.22, and 0.35%, respectiv ...201728130636
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