Fowl pox in the trachea of point-of-lay hens.
D000818:Animals; D002645:Chickens; D005260:Female; D005586:Fowlpox / Q000473:pathology*; D005587:Fowlpox virus / Q000302:isolation & purification; D007830:Larynx / Q000382:microbiology; D011201:Poultry Diseases / Q000473:pathology*; D014132:Trachea / Q000382:microbiology / Q000473:pathology*