AmebiasisEntamoebiasisEntamoeba histolyticaDysentery, AmebicLiver Abscess, AmebicAntibodies, ProtozoanAntigens, ProtozoanEntamoebaAmebicidesLung Diseases, ParasiticTrophozoitesProtozoan VaccinesCysteine ProteasesMetronidazoleBangladeshDNA, ProtozoanFecesGerbillinaeHemagglutination TestsProtozoan ProteinsLectinsImmunoglobulin A, SecretorySerologic TestsAntiprotozoal AgentsHomosexuality, MaleEnzyme-Linked Immunosorbent Assay