Mixed infection with Mycoplasma gallisepticum and the B1 strain of Newcastle disease virus in chickens.
D000400:Air Sacs / Q000473:pathology; D000818:Animals; D002645:Chickens; D008168:Lung / Q000473:pathology; D009174:Mycoplasma; D009175:Mycoplasma Infections / Q000150:complications / Q000473:pathology / Q000662:veterinary*; D009521:Newcastle Disease / Q000150:complications* / Q000473:pathology; D009522:Newcastle disease virus; D011201:Poultry Diseases; D014132:Trachea / Q000473:pathology