1. 1. Baily, G. G., Krahn, J. B., Drasar, B. S. and Stoker, N. G.1992. Detection of Brucella melitensis and Brucella abortus by DNA amplification. J. Trop. Med. Hyg. 95: 271–275.
2. 2. Cao, S., Chen, H., Zhao, J., Lu, J., Xiao, S., Jin, M., Guo, A., Wu, B. and He, Q.2005. Detection of porcine circovirus type 2, procine parvovirus and porcine pseudorabies virus from pigs with postweaning multisystemic wasting syndrome by multiplex PCR. Vet. Res. Comm. 29: 263–269.
3. 3. Chae, C., Kim, O., Choi, C., Min, K., Cho, W. S., Kim, J. and Tai, J. H.2000. Prevalence of porcine epidemic diarrhoea virus and transmissible gastroenteritis virus infection in Korean pigs. Vet. Rec. 147: 606–608.
4. 4. Cho, M. K., Kee, S. H., Song, H. J., Kim, K. H., Song, K. J., Baek, L. J., Kim, H. H., Oh, H. B., Kim, Y. W. and Chang, W. H.1998. Infection rate of Leptospira interrogans in the field rodent, Apodemus agrarius, in Korea. Epidemiol. Infect. 121: 685–690.
5. Colonisation and shedding of Lawsonia intracellularis in experimentally inoculated rodents and in wild rodents on pig farms