[Epizootology of horse influenza in Spain].
D000818:Animals; D006734:Horse Diseases / Q000453:epidemiology*; D006736:Horses; D009976:Orthomyxoviridae Infections / Q000453:epidemiology / Q000662:veterinary*; D013030:Spain
Epizootologie de l'influenza du cheval en Espagne.