Emerging Infectious Disease ISSN: 1080-6059

New Variants of Porcine Epidemic Diarrhea Virus, China, 2011

Wentao Li, Heng Li, Yunbo Liu, Yongfei Pan, Feng Deng, Yanhua Song, Xibiao Tang, and Qigai He

Author affiliations: Huazhong Agricultural University, Wuhan, People’s Republic of China (W. Li, H. Li; F. Deng, X. Tang, Q. He); and Guangdong Wen’s Foodstuffs Group Company, Ltd., Xinxing, People’s Republic of China (Y. Pan, Y. Song)

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Figure 2

Phylogenetic trees of porcine epidemic diarrhea virus (PEDV) strains generated by the neighbor-joining method with nucleotide sequences of the full-length spike genes. Bootstrapping with 1,000 replicates was performed to determine the percentage reliability for each internal node. Horizontal branch lengths are proportional to genetic distances between PEDV strains. Black circles indicate PEDV field isolates from the 2011 outbreak in China. Scale bar indicates nucleotide substitutions per site.

Figure 2. . Phylogenetic trees of porcine epidemic diarrhea virus (PEDV) strains generated by the neighbor-joining method with nucleotide sequences of the full-length spike genes. Bootstrapping with 1,000 replicates was performed to determine the percentage reliability for each internal node. Horizontal branch lengths are proportional to genetic distances between PEDV strains. Black circles indicate PEDV field isolates from the 2011 outbreak in China. Scale bar indicates nucleotide substitutions per site.

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