, an epidemic of hand, f oot and mouth disease (HFMD) occurred in Gifu prefecture. Epidemiological, virological and serological investigations were performed. Cases involved ranged from 0 to 31 years of age, and 80.2% of them were under 5 years of age. The in cidence of HFMD with neurological complication (3.7%) was lower than that in 1973. Enterovirus 71 (EV71) was isolated from 83 of 108 cases (75.9%) and a significant rise in the neutralization antibody titer against the isolate was found in 14 of 25 cases (56%). Thus, it was confirmed that the causative agent of the epidemic of HFMD in Gifu prefecture in 1978 was enterovirus 71. 168 MIWA et al.
A rare case of secondary syphilis showing mucous patches on the hard palate is reported. A 31-year-old male had two erosive patches which were slightly raised on his hard palate. A linear lesion was also present on the inside of his right alveolar process. Many red-brown macules on his abdomen and bilateral inguinal lymphadenopathy accompanied these symptoms. The serological tests for syphilis were positive: VDRL test 1:512, TPHA test 1:20,480, and IgM-FTA-ABS test 1:40. Immunohistochemical staining with rabbit monoclonal antibody to Treponema pallidum by the biotin-streptoavidin system detected treponemal organisms in the paraffin-embedded specimen from his mucous patch. A diagnosis of secondary syphilis was made, and he was given amoxicillin (AMPC) at 750 mg per day for 4 weeks. His eruptions, including the mucous patch, healed in a week.
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