title: Prevalence of precipitating antibodies against mycoplasmas and viruses in egg-laying flocks in Northern Jutland.
abstract: Antibodies against infectious laryngotracheitis virus, influenavirus and Newcastle disease virus were not demonstrated. The prevalence of infections caused by adeno- and reovirus in egg-laying flocks was 85 and 74% respectively. Approximately 25% of the flocks had antibodies against infectious bronchitis virus and infectious bursal disease virus. A raised prevalence of antibodies against mycoplasmas was found with increasing age.
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis; D000914:Antibodies, Viral / Q000032:analysis; D002645:Chickens; D003718:Denmark; D005260:Female; D009175:Mycoplasma Infections / Q000453:epidemiology / Q000662:veterinary*; D011201:Poultry Diseases / Q000453:epidemiology*; D011233:Precipitin Tests; D014777:Virus Diseases / Q000453:epidemiology / Q000662:veterinary*
chemical_list: D000907:Antibodies, Bacterial; D000914:Antibodies, Viral