Incidence of herds infected with a neonatal calf diarrhea virus (NCDV).
D000818:Animals; D000831:Animals, Newborn; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D003967:Diarrhea / Q000453:epidemiology / Q000662:veterinary*; D004927:Escherichia coli Infections / Q000453:epidemiology / Q000662:veterinary*; D009329:Nebraska; D014777:Virus Diseases / Q000453:epidemiology / Q000662:veterinary*