title: Coinfection with type 1 and type 2 PRRSV.
authors.affiliation: College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, USA, e-mail: jqzhang@iastate.edu.
authors.forename: Jianqiang
authors.initials: J
authors.lastname: Zhang
mesh_terms: D000818:Animals; D060085:Coinfection / Q000473:pathology / Q000517:prevention & control / Q000662:veterinary* / Q000821:virology; D019318:Porcine Reproductive and Respiratory Syndrome / Q000473:pathology / Q000517:prevention & control / Q000821:virology*; D019316:Porcine respiratory and reproductive syndrome virus / Q000145:classification*; D013552:Swine; D014611:Vaccination / Q000662:veterinary