Current situation of porcine reproductive and respiratory syndrome in Korea
1999
Han, K.S. | Lyoo, K.S. | Park, B.K. (Seoul National University, Suwon (Korea Republic). Department of Veterinary Medicine, College of Veterinary Medicine)
The 2,078 blood samples from 148 swine farms were collected and tested by IFA for porcine reproductive and respiratory syndrome(PRRS) virus antibody to know what type of PRRS prevails by the area. Clnically reproductive form of PRRS occurred in swine farms of 3/27, 3/87, and 2/34 in estern, central and western areas, but the seroprevalence of those areas ws different as 6.5%, 23.3%, and 17.6%, respectively. However, respiratory form of PRRS occurred more frequently, and the number of farms manifested with the respiratory form of PRRS in the eastern, central and western areas was 22/27, 71/87, and 30/34, respectively. The seroprevalence of that form of PRRS in the eastern, central and western areas was 52.2%m 67.1%, and 51.6%, respectively. Sybsequently mixed form of PRRS ocurred more frequently in the central area and the number of farms of eastern, central and western areas was 2/27, 13/87, and 2/34, respectively. The PRRS seroprevalence of the eastern, central and western areas was 58.6%, 54.0%, and 19.2%, respectively. Collectively the PRRS seroprevalence of eastern, central and western areas was 43.8%, 59.3%, and 38.2%, respectively. Overall seroprevalence of PRRS in Korea was 51.8%. In conclusion, the reproductive or the respiratory form of PRRS has been still in trouble inthe Korean swine industry and PRRS control measures have to be taken in consideration.
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