Seroprevalence of porcine respiratory coronavirus in selected Korean pigs

A total of 446 serum samples from ss herds in Korea were examined for antib ody to porcine respiratory coronavirus (PRCV) using blocking enzyme-linked immunosorbent assay (ELISA). All serum samples were collected from 24- to 2 6-week-old finishing pigs between December 1998 and June 1999. By ELISA, 23 7 out of 446 sera tested (53.1%) and 54 out of 88 sampled herds (61.3%) wer e positive against PRCV. Of 446 sera from 88 herd tested, 185 (41.5%) serum samples from 22 (25%) herds were seronegative against PRCV and transmissib le gastroenteritis virus infection. Our data suggested that seropositive he rds for PRCV are distributed diffusely throughout South Korea. (C) 2000 Els evier Science B.V. Ail rights reserved.