comparison of serine-rich protein genes of entamoeba histolytica isolates obtained from institutions for the mentally retarded in kanagawa and shizuoka prefectures, japan, amebiasis has been observed in homosexual men, in institutionalized persons, and in overseas travelers. we have previously reported an outbreak of amebiasis that occurred from 1986 to 1994 in institutions for the mentally retarded in kanagawa and shizuoka prefectures in eastern japan. entamoeba histolytica but not entamoeba dispar was identified in entamoeba cultures obtained from cyst passers in four institutions located in different municipalities in this region. in the present study ...201020556425
[invasive amebiasis at an institution for the mentally retarded in shizuoka prefecture].amebiasis caused by entamoeba histolytica at an institution for mentally retarded in shizuoka prefecture is reported. five of the 50 patients showed e. histolytica cysts in their stools and 4 were positive serologically. the polymerase chain reaction and restriction fragment length polymorphism revealed that the isolates were pathogenic-type e. histolytica. epidemiological analysis revealed that the amebic infection was caused by the abnormal behavior of mentally retarded patients. administratio ...19968822047
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