Herpangina surveillance in Japan, 1982-1989. A report of the national epidemiological surveillance of infectious agents in Japan. |
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Authors: | S Yamadera K Yamashita N Kato M Akatsuka K Miyamura S Yamazaki |
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Institution: | Central Virus Diagnostic Laboratory, National Institute of Health, musashimurayama, Tokyo, Japan. |
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Abstract: | In Japan, herpangina cases increase every summer with an incidence peak in July. During the past eight years from January, 1982 to December, 1989, a total of 3,974 viruses from herpangina cases were reported from 47 participating laboratories, and coxsackie A (CA) viruses accounted for most of them, 3,055 (76.9%). The major types associated with herpangina were, in order of frequency, CA4, 10, 5, 6, 2 and 3, representing 87.2%-80.8% of total isolations reported for each respective type in this period. Eighty-four point four percent of the total virus isolations were from children at four years of age or younger. More than 80% of total CA virus isolations were from nasopharyngeal specimens and nearly 90% of the viruses were isolated in mice. |
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