{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T12:55:17Z","timestamp":1787921717061,"version":"build-2784847793"},"reference-count":13,"publisher":"American Society of Tropical Medicine and Hygiene","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,10,1]]},"abstract":"<jats:p>Seventy-one asymptomatic human immunodeficiency virus-1 (HIV-1) -infected individuals who underwent colonoscopy for detection of diseases other than amebiasis were included in this study. Ulcerative lesions caused by <jats:italic>Entamoeba histolytica<\/jats:italic> were identified by colonoscopy and biopsy in 11.3% (8 of 71) of individuals. Stool microscopic examination hardly identified <jats:italic>Entamoeba<\/jats:italic>, whereas serum antibody against <jats:italic>E. histolytica<\/jats:italic> was often elevated in patients with subclinical intestinal amebiasis. Human leukocyte antigen (HLA) class II allele against <jats:italic>E. histolytica<\/jats:italic> infection (DQB1*06:01) was frequently identified in these patients. This study emphasizes the endemic nature of <jats:italic>E. histolytica<\/jats:italic> infection in our cohort and the difficulties in epidemiological control.<\/jats:p>","DOI":"10.4269\/ajtmh.14-0278","type":"journal-article","created":{"date-parts":[[2014,7,22]],"date-time":"2014-07-22T02:54:50Z","timestamp":1405997690000},"page":"816-820","source":"Crossref","is-referenced-by-count":13,"title":["Asymptomatic Intestinal Amebiasis in Japanese HIV-1\u2013Infected 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