Immunization experiments against fowl pox with a vaccine prepared from low-pathogenicity fowl pox virus.
D000818:Animals; D002642:Chick Embryo; D002645:Chickens; D010856:Columbidae; D005586:Fowlpox / Q000276:immunology*; D011212:Poxviridae / Q000472:pathogenicity*; D013997:Time Factors; D014611:Vaccination / Q000662:veterinary; D014765:Viral Vaccines
D014765:Viral Vaccines