The production of calf pneumonia with Escherichia coli and a bovine picornavirus.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000209:etiology*; D004926:Escherichia coli / Q000472:pathogenicity*; D008168:Lung / Q000473:pathology; D008198:Lymph Nodes / Q000382:microbiology; D010849:Picornaviridae / Q000472:pathogenicity*; D011014:Pneumonia / Q000662:veterinary*; D014774:Virulence