Outbreak of Porcine Reproductive and Respiratory Syndrome Virus 1 in Taiwan

Wei-Hao Lin; Kraijak Kaewprom; Sheng-Yuan Wang; Chuen-Fu Lin; Cheng-Yao Yang; Ming-Tang Chiou; Chao-Nan Lin

doi:10.3390/v12030316

Outbreak of Porcine Reproductive and Respiratory Syndrome Virus 1 in Taiwan

Viruses. 2020 Mar 16;12(3):316. doi: 10.3390/v12030316.

Authors

Wei-Hao Lin^{1

2}, Kraijak Kaewprom^{2

3}, Sheng-Yuan Wang¹, Chuen-Fu Lin⁴, Cheng-Yao Yang⁵, Ming-Tang Chiou^{1

2}, Chao-Nan Lin^{1

2}

Affiliations

¹ Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan.
² Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan.
³ Program of Veterinary Technology, Faculty of Agricultural Technology, Rajabhat Mahasarakham University, Mahasarakham 44000, Thailand.
⁴ Department of Veterinary Medicine, College of Veterinary Medicine, National Chiayi University, Chiayi 60054, Taiwan.
⁵ Graduate Institute of Veterinary Pathobiology, College of Veterinary Medicine, National Chung Hsing University, Taichung 40227, Taiwan.

Abstract

Porcine reproductive and respiratory syndrome (PRRS) causes significant economic lossesin the swine industry worldwide. The PRRS virus (PRRSV) can be divided into two species, PRRSV1 (European) and PRRSV 2 (North American). In Taiwan, PRRSV 2 isolates are dominant and causerespiratory symptoms in nursing pigs. From October to November 2018, in a pig herd in centralTaiwan, pregnant sows had abortions and stillbirths, and piglets suffered from respiratorydisorders. Laboratory tests identified the presence of PRRSV 1 in serum from sows and sucklingpiglets in this scenario. The complete genome of the identified PRRSV 1 strain was geneticallyclosely related to that of a European PRRSV vaccine strain (98.2%). This local European isolate isdesignated as PRRSV/NPUST-2789-3W-2/TW/2018 (NPUST2789). This report is the first to indicatean outbreak in Taiwan of a PRRSV 1 strain that shares a common evolutionary ancestor with theEuropean PRRSV vaccine strain.

Keywords: European type; Taiwan; porcine reproductive and respiratory syndrome virus 1.

MeSH terms

Animals
Disease Outbreaks
Porcine Reproductive and Respiratory Syndrome / epidemiology*
Porcine Reproductive and Respiratory Syndrome / virology
Porcine respiratory and reproductive syndrome virus / immunology*
Respiratory Syncytial Virus Infections / epidemiology*
Respiratory Syncytial Viruses / immunology*
Sequence Analysis
Swine
Swine Diseases / epidemiology
Swine Diseases / virology
Taiwan / epidemiology
Vaccination / veterinary
Vaccines, Attenuated / immunology
Viral Vaccines / immunology

Substances

Vaccines, Attenuated
Viral Vaccines