US-Like Strain of Porcine Epidemic Diarrhea Virus Outbreaks in Taiwan, 2013–2014

• Published in: Journal of Veterinary Medical Science Vol. 76; no. 9; pp. 1297 - 1299
• Main Authors: LIN, Chao-Nan, CHUNG, Wen-Bin, CHANG, Shu-Wei, WEN, Chi-Chi, LIU, Hung, CHIEN, Chi-Hsien, CHIOU, Ming-Tang
• Format: Journal Article
• Language: English
• Published: Japan JAPANESE SOCIETY OF VETERINARY SCIENCE 01.09.2014; Japan Science and Technology Agency; The Japanese Society of Veterinary Science
• Subjects: Animals; Animals, Suckling; Base Sequence; Coronavirus Infections - epidemiology; Coronavirus Infections - veterinary; Coronavirus Infections - virology; diarrhea; Diarrhea - epidemiology; Diarrhea - veterinary; Diarrhea - virology; disease outbreaks; Disease Outbreaks - veterinary; Molecular Sequence Data; Phylogeny; porcine epidemic diarrhea virus; Porcine epidemic diarrhea virus - genetics; Porcine epidemic diarrhea virus - isolation & purification; Retrospective Studies; Reverse Transcriptase Polymerase Chain Reaction - veterinary; RNA, Viral - chemistry; RNA, Viral - genetics; Sequence Alignment; Sequence Analysis, DNA; Spike Glycoprotein, Coronavirus - chemistry; Spike Glycoprotein, Coronavirus - genetics; Swine; Swine Diseases - epidemiology; Swine Diseases - virology; Taiwan - epidemiology; Virology; Taiwan
• ISSN: 0916-7250; 1347-7439; 1347-7439
• DOI: 10.1292/jvms.14-0098

Since late 2013, several outbreaks of porcine epidemic diarrhea virus (PEDV) infection have emerged in Taiwan. Suckling piglets under 2 weeks of age showed severe vomiting and watery yellowish diarrhea with morbidity and mortality ranging from 80 to 100% and 90 to 100%, respectively. A total of 68 samples from 25 pig farms were confirmed as positive for PEDV and negative for rotavirus and transmissible gastroenteritis virus by reverse transcription PCR, and the partial S gene of PEDV was analyzed. Phylogenetic analysis places all 18 Taiwanese PEDV isolates collected during this outbreak in the same clade as the US strains of PEDV. This novel PEDV is prevailing and currently causing severe outbreaks in Taiwan.