title: Deadly pig virus slips through US borders.
authors.forename: Beth
authors.initials: B
authors.lastname: Mole
mesh_terms: D000818:Animals; D018352:Coronavirus Infections / Q000453:epidemiology / Q000635:transmission / Q000662:veterinary / Q000821:virology; D053485:Porcine epidemic diarrhea virus / Q000235:genetics / Q000302:isolation & purification* / Q000472:pathogenicity; D034421:Sus scrofa / Q000821:virology; D013552:Swine / Q000821:virology*; D013553:Swine Diseases / Q000453:epidemiology* / Q000635:transmission / Q000821:virology*; D014481:United States / Q000453:epidemiology