[Relationship between epidemiological data of adenovirus type 7 in Kawasaki City and restriction enzyme assay pattern of the virus]

Since April 1995 increased number of type 7 were isolated in Japan and also in Kawasaki city. From May 1996 to March 1999, Adenovirus type 7 (Ad7) were isolated from 49 patients with high body temperature, and longer febrile period were observed in infants and younger children. Lower respiratory tract infection occurred and a young child developed fatal pneumonia. Ad7 were isolated not only in summer but in winter. They were prevalent all season. We analyzed 27 strains of Ad7 genetically using restriction enzyme and compared the results with epidemiological and clinical data. Consequently we can not found any difference in genetic pattern between these Ad7 regardless of age or symptom. The pattern was all the same as Ad7d that of already issued in Japan.