title: Infectious bursal disease and spirochetosis in pullet chicks.
abstract: Infectious bursal disease and spirochetosis were diagnosed simultaneously in a flock of 100 six-week-old babcock pullet chicks. Larvae of the fowl tick Argas persicus were found on the bodies of the chicks. Thirty-nine of the chicks died 5 days after the onset of clinical signs.
mesh_terms: D000818:Animals; D001899:Borrelia Infections / Q000150:complications / Q000662:veterinary*; D002645:Chickens / Q000382:microbiology*; D005260:Female; D007243:Infectious bursal disease virus; D012088:Reoviridae Infections / Q000150:complications / Q000662:veterinary*