Persistence of porcine reproductive and respiratory syndrome in pigs.
Horter
D
D
Department of Veterinary Diagnostics and Production Animal Medicine, Iowa State University College of Veterinary Medicine, Ames, IA, USA.
Chang
C C
CC
Pogranichnyy
R
R
Zimmerman
J
J
Yoon
K J
KJ
D000818:Animals; D002353:Carrier State / Q000662:veterinary* / Q000821:virology; D019318:Porcine Reproductive and Respiratory Syndrome / Q000821:virology*; D019316:Porcine respiratory and reproductive syndrome virus / Q000254:growth & development* / Q000302:isolation & purification; D013552:Swine