comparison of serine-rich protein genes of entamoeba histolytica isolates obtained from institutions for the mentally retarded in kanagawa and shizuoka prefectures, japan. | in 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 ... | 2010 | 20556425 |