title: PED virus reinfecting U.S. herds.   Virus estimated to have killed 7 million-plus pigs.
authors.forename: Greg
authors.initials: G
authors.lastname: Cima
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D018352:Coronavirus Infections / Q000453:epidemiology / Q000276:immunology / Q000401:mortality / Q000662:veterinary* / Q000821:virology; D004196:Disease Outbreaks / Q000662:veterinary*; D053485:Porcine epidemic diarrhea virus; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology / Q000276:immunology / Q000401:mortality / Q000821:virology*; D013997:Time Factors; D014481:United States / Q000453:epidemiology