[The serologic detection of virus-induced infections in the domestic goose (Anser anser dom.)].

The most important virus-induced diseases associated with heavy losses in the domestic goose are Derzsy's disease which is caused by a goose parvovirus and duck plague (duck viral enteritis) which is caused by an avian herpesvirus. Both diseases still occur but can be prevented by timely vaccinations. Antibodies against Influenza A viruses of the subtypes H1, H5, and H7 as well as against avian paramyxoviruses of the serogroups 4, 6, and 8, respectively, were not detected in any of the examined sera. However, antibodies against paramyxovirus type 1 were detected in sera of one source. Haemagglutination inhibition or neutralizing antibodies against avian adenoviruses (EDS76 virus and goose adenovirus of the serotypes 1, 2, and 3) were quite often detected. Based on the present knowledge their pathogenic potential is minor. Neutralizing antibodies against a reovirus originating from Muscovy ducks and against a chicken reovirus (strain U Con S 1133) were quite frequently detected. In 35 of 564 examined geese sera hepatitis B virus was found.