The Vaccination Results of Attenuated Live Vaccine of Highly Pathogenic PRRS
Abstract：Lymphocytes, virus nucleic acid and immune antibody were detected in our lab on analyzing immune response against attenuated live vaccine on highly pathogenic Porcine Reproductive and Respiratory Syndrome (PRRS) for guiding applications of this vaccine by farmers betterly. Twenty 30-day-old ternary weaned piglets were randomly divided into two groups A and B. The pigs in Group A were injected with live vaccine and the pigs in group B were injected with saline solution as control. The results showed that the Lymphocytes increased from 7.585 × 10^9/L to 15.28 × 10^9/L, the antibody-positive rate increased from 0% to 100%, virus nucleic acid positive rate increased from 0% to 90% in vaccined piglets after 28 days. The results showed that the live vaccine(JXA1-R strain) of PRRS could induce better immune response in pigs and the duration time of vaccine virus infection were more than 28 days.
Keywords：PRRS 3XA 1-R strainsLive vaccineLymphocytes
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 32-34 )