detection and molecular diversity of spike gene of porcine epidemic diarrhea virus in china. | since late 2010, porcine epidemic diarrhea virus (pedv) has rapidly disseminated all over the china and caused considerable morbidity and high mortality (up to 100%) in neonatal piglets. 79.66% (141 of 177) pig farms in 29 provinces (excluding tibet and hainan, china) and 72.27% (417 of 577) samples were positive for pedv confirmed by reverse transcription-polymerase chain reaction (rt-pcr). the full-length s genes of representative field strains were sequenced. 33 field strains share 93.5%-99.9 ... | 2013 | 24153062 |