Prevalence and genetic diversity of <i>porcine reproduction and respiration syndrome viruses</i> in Sichuan Province from 2023-2024.

ABSTRACT:

Introduction

Porcine reproductive and respiratory syndrome (PRRS), caused by porcine reproductive and respiratory syndrome virus (PRRSV), occurs frequently in China, and severely hinders the healthy development of the pig farming industry.

Methods

To determine the genetic diversity and epidemiological characteristics of PRRSV strains in Sichuan Province, we collected 499 clinical samples suspected of PRRSV infection from 101 pig farms in 19 cities from 2023 to 2024.

Results and discussion

Among the 499 samples, 162 were positive for PRRSV, with a total prevalence of 32.46% according to RT-qPCR. Among the 101 pig farms, 55 were positive farm, resulting in a rate of 54.46%. Further analysis of the complete ORF5 gene sequences of 56 PRRSV strains revealed that the

SUBMITTER: Li M 

PROVIDER: S-EPMC12366502 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature