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Three strains of porcine epidemic diarrhea virus (PEDV) were isolated from dead or diseased pigs at different swine farms in Guangdong during 2011–2013, and their S genes were sequenced. In the same period, seven PEDV strains were also isolated in Guangdong by other laboratories. The spike sequences of 10 Guangdong isolates were compared with vaccine strains and reference pathogenic isolates using...
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