title: Swollen-head syndrome in broiler chickens.
abstract: Swollen-head syndrome is a disease seen in broiler chickens between 4 and 6 weeks of age in Southern Africa. It appears to be caused by a mixed coronavirus and Escherichia coli infection. The coronavirus appears to be of a hitherto unrecorded serotype. The disease is controlled by an attenuated live-virus vaccine and antibacterial medication.
mesh_terms: D000818:Animals; D002645:Chickens / Q000382:microbiology*; D003333:Coronaviridae Infections / Q000473:pathology / Q000662:veterinary*; D004487:Edema / Q000473:pathology / Q000662:veterinary*; D004927:Escherichia coli Infections / Q000150:complications / Q000473:pathology / Q000662:veterinary*; D005260:Female; D006257:Head; D011201:Poultry Diseases / Q000209:etiology / Q000473:pathology*; D013019:South Africa; D013577:Syndrome / Q000662:veterinary