The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The first case of Aujeszky’s disease in cattle was found in an individual farm in 1980, and the next ones in large scale breedings. Since 1985 the number of outbreaks showed an increased tendency. Eight outbreaks of the disease was noted in four farms with one or two recurrences in three of them between 1985—1987. The total number of outbreaks was 11 between 1980—1991. Sick or latently infected pigs...