title: [Studies on the serological differentiation of field virus isolates and the protective action of vaccines in infectious bronchitis].
mesh_terms: D000818:Animals; D001991:Bronchitis / Q000517:prevention & control / Q000662:veterinary*; D002645:Chickens / Q000382:microbiology*; D003332:Coronaviridae / Q000276:immunology*; D001351:Infectious bronchitis virus / Q000276:immunology*; D009500:Neutralization Tests; D011201:Poultry Diseases / Q000382:microbiology* / Q000517:prevention & control; D014611:Vaccination
vernacular_title: Untersuchungen zur serologischen Differenzierung von Feldisolaten sowie zur Schutzwirkung von Impfstoffen bei der infektiösen Bronchitis