[Epidemiological study of Japanese encephalitis in Hokkaido. 1. Historical review of the occurrence of Japanese encephalitis in man and domestic animals].
D000034:Abortion, Veterinary / Q000453:epidemiology; D000818:Animals; D004672:Encephalitis, Japanese / Q000453:epidemiology* / Q000662:veterinary; D005260:Female; D006734:Horse Diseases / Q000453:epidemiology*; D006736:Horses; D006801:Humans; D007564:Japan; D011247:Pregnancy; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology*