Tuyển tập các báo cáo nghiên cứu về bệnh thú y được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành thú y đề tài: Surveillance of Ruminant Diseases in the Nordic Countries. | Acta vet. scand. 2001 Suppl. 94 21-28. Surveillance of Ruminant Diseases in the Nordic Countries By Olafur Valsson1 S. Alenius2 T. Krogh Nielsen3 O. Nyberg4 P. Salmela5 1Dalvik Distrikt Veterinarian Eyrarlandvegur 24 600 Akureyri Iceland 2National Veterinary Institute 7073 SE-75007 Uppsala Sweden 3Danish Veterinary Laboratory Bulowsvej 27 DK-1790 Copenhagen V Denmark 4Veterin crinstituttet. . Box 8156 dep NO-0033 Oslo Norway 5Lihakunta Pl 147 SF-70101 Kuopio Finland. All the Nordic countries have a basis for their surveillance and disease control in ruminants in national legislation and regulations listing notifiable diseases of concern to the countries. The Nordic countries are a disease- free zone comparing to other parts of the world and the aim of the surveillance is to keep that status and be able to document it. Following is a short summary from each country. In Denmark exotic diseases that have never been diagnosed or at least detected decades ago are surveyed to state freedom. At the present time the cattle population is surveyed systematically for three diseases IBR free since 1992 enzootic leucosis free since 1991 and BVD eradication program since 1994 . Surveillance for TSE BSE and scrapie is based on diseased animals with central nervous signs. In sheep and goats Maedi-Visna and CAE are controlled through a voluntary program started in 1979. Sheep and goats are monitored for Brucella melitensis. In Finland the cattle population is surveyed to state that the country is free from disease for IBR enzootic bovine leucosis BSE Brucellosis and Tuberculosis and surveillance for disease control is performed for BVD and and goats are surveyed for Scrapie Maedi-Visna CAE and Brucellosis. None of the known bovine viral diseases have ever been diagnosed in Iceland. Samples for IBR BVD and enzootic bovine leucosis have been taken on a sporadic ground from cattle due to export all with negative result. Surveillance on Paratuberculosis .
