Epidemiology of major respiratory diseases of the horse.
D000818:Animals; D003937:Diagnosis, Differential; D006566:Herpesviridae Infections / Q000662:veterinary*; D006734:Horse Diseases / Q000175:diagnosis / Q000453:epidemiology*; D006736:Horses; D009976:Orthomyxoviridae Infections / Q000662:veterinary*; D012141:Respiratory Tract Infections / Q000662:veterinary*; D013290:Streptococcal Infections / Q000662:veterinary*; D014777:Virus Diseases / Q000662:veterinary*; D014713:Viruses, Unclassified