Recent advances in the study of NADC34-like porcine reproductive and respiratory syndrome virus in China

Author:

Zhao Hong-zhe,Wang Feng-xue,Han Xiao-yu,Guo Hao,Liu Chun-yu,Hou Li-na,Wang Ya-xin,Zheng Hui,Wang Lu,Wen Yong-jun

Abstract

Since porcine reproductive and respiratory syndrome virus (PRRSV) was first described in China in 1996, several genetically distinct strains of PRRSV have emerged with varying pathogenicity and severity, thereby making the prevention and control of PRRS more difficult in China and worldwide. Between 2017 and 2021, the detection rate of NADC34-like strain in China increased. To date, NADC34-like strains have spread to 10 Chinese provinces and have thus developed different degrees of pathogenicity and mortality. In this review, we summarize the history of NADC34-like strains in China and clarify the prevalence, genomic characteristics, restriction fragment length polymorphisms, recombination, pathogenicity, and vaccine status of this strain in China. In so doing, this study aims to provide a basis for the further development of prevention and control measures targeting the NADC34-like strain.

Funder

Inner Mongolia Agricultural University

Natural Science Foundation of Inner Mongolia

Publisher

Frontiers Media SA

Subject

Microbiology (medical),Microbiology

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