title: Actinobacillus pleuropneumoniae serotype-2 antibodies in sow colostrum in Finnish pig-health-scheme herds.
abstract: A direct ELISA with phenol-extracted antigen for Actinobacillus pleuropneumoniae serotype 2 was developed. The test was specific when tested with rabbit antisera prepared against different A. pleuropneumoniae serotypes. It had better-than-moderate repeatability and it made a clear distinction between positive and negative samples. A total of 5477 colostrum samples from breeding sows from herds participating in the Finnish Pig-health Scheme were tested using the ELISA test. A total of 1307 positive samples were found in 129 out of 154 herds, thus indicating that most of the disease-control herds in Finland are infected with A. pleuropneumoniae serotype 2. These infections were almost entirely subclinical.
authors.affiliation: National Veterinary and Food Research Institute, Helsinki, Finland.
authors.forename: K
authors.initials: K
authors.lastname: Levonen
authors.forename: P
authors.initials: P
authors.lastname: Veijalainen
authors.forename: J
authors.initials: J
authors.lastname: Seppänen
mesh_terms: D000189:Actinobacillus Infections / Q000453:epidemiology / Q000662:veterinary*; D016977:Actinobacillus pleuropneumoniae / Q000276:immunology*; D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis*; D003126:Colostrum / Q000276:immunology*; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D005260:Female; D005387:Finland / Q000453:epidemiology; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology*
chemical_list: D000907:Antibodies, Bacterial