id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-000699-2mfbqs8i	Sun, Rui-Qin	Outbreak of Porcine Epidemic Diarrhea in Suckling Piglets, China	2012-01-17		.txt	text/plain	1414	78	58	To the Editor: Beginning in October 2010, porcine epidemic diarrhea (PED), caused by a coronaviral infection affecting pigs, emerged in China in an outbreak characterized by high mortality rates among suckling piglets. The partial S gene deduced amino acid sequences were compared and also showed a high degree of homology (98.0%-100.0%); they had 85.3%-98.7% identity with all reference strains listed in online Technical Appendix Table 2 , 98.0%-98.7% with Thailand strains, and 93.3%-94.7% with vaccine strain CV777 (data not shown). These results showed that PEDV was present in sow milk (online Technical Appendix Table 3 ), but the detection rate was lower for these samples (40.8%) than for the fecal samples (82.0%). Our fi ndings show that PEDV was identifi ed not only in fecal samples from sick piglets, as expected, but also in the milk of the sow, which suggests vertical transmission of the virus.	./cache/cord-000699-2mfbqs8i.txt	./txt/cord-000699-2mfbqs8i.txt