Duration of Infection and Proportion of Pigs Persistently Infected with Porcine Reproductive and Respiratory Syndrome Virus†

Robert W. Wills,* Alan R. Doster, Judith A. Galeota, Jung-Hyang Sur,‡ and Fernando A. Osorio Department of Veterinary and Biomedical Science, University of Nebraska—Lincoln, Lincoln, Nebraska 68583-0907 *Corresponding author. Present address: P.O. Box 6100, Mississippi State, MS 39762. Phone: (662)... (Continue reading)