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Volume 18, Number 1—January 2012


Outbreak of Porcine Epidemic Diarrhea in Suckling Piglets, China

Rui-Qin Sun, Ru-Jian Cai, Ya-Qiang Chen, Peng-Shuai Liang, De-Kun Chen, and Chang-Xu SongComments to Author 
Author affiliations: Guangdong Academy of Agricultural Sciences Veterinary Medical Institute, Guangzhou, China (R.-Q. Sun, R.-J. Cai, C.-X. Song); Northwest A & F University, Xi’an, Shanxi, China (R.-Q. Sun, D.-K. Chen); Inner Mongolia Agriculture University, Huhhot, Inner Mongolia, China (Y.-Q. Chen); Henan Agriculture University, Zhengzhou, Henan, China (P.-S. Liang)

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Figure. Phylogenetic tree constructed by using the neighbor-joining method based on the 9 porcine epidemic diarrhea virus (PEDV) sequences identified in a study of porcine epidemic diarrhea in China. Partially amplified spike genes of the PEDV isolates plus 18 PEDV sequences downloaded from GenBank were compared. Sequences included in each cluster are listed in Technical Appendix Table 3. Strains from Thailand and China and the CV777 vaccine strain are indicated. Scale bar indicates nucleotide substitutions per site.

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