美国猪肉生产商被建议关注生物免疫力

　　US - The American Association of Swine Veterinarians is urging pork producers to keep up their focus on biosecurity and maintaining herd immunity heading into the winter to keep PED at bay, writes Bruce Cochrane. Although the incidence of Porcine Epidemic Diarrhoea has been down significantly in the US this summer, the winter is expected show whether it's going to be an endemic disease or whether there will be an opportunity to eliminate it.

　　美国——美国猪兽医协会敦促猪肉生产商继续关注生物安全，保持畜群体入冬免疫力，预防PED侵入，布鲁斯·科克伦写道。尽管今年夏天美国猪流行性腹泻的发病率显著下降，预计冬天将显示是否成为地方病或是否会有机会来消除它。