[Distribution of the A and B serogroups of poultry leukosis viruses].
D000818:Animals; D001353:Avian Leukosis / Q000382:microbiology*; D001354:Avian Leukosis Virus / Q000276:immunology*; D002645:Chickens / Q000382:microbiology; D011200:Poultry / Q000382:microbiology*; D012703:Serotyping
Rasprostranenie virusov leĭkozov ptits serogrupp Ai B