The bedside diagnosis of amebiasis could improve patient care. In Bangladesh and Vietnam, a novel and simple-to-use Entamoeba histolytica rapid antigen test had 97% sensitivity and 100% specificity compared to the results of a standard enzyme-linked immunosorbent assay antigen detection method, and a rapid antibody test had 89 to 100% sensitivity and 89 to 95% specificity.

Intestinal parasitic infections are common in mental institutions (Jeffrey, 1960; Yoeli et ai, 1972). In Saudi Arabia, previous studies have revealed that higher prevalences, especially of giardiasis and amebiasis, exist among residents of closed institutions such as orphanages, child nurseries, rehabilitation centers and schools com­ pared to urban or rural populations (AI-Madani et ai, 1989; ...

LEUROPULMONARY L E S I O N S NEXT TO P t h e liver are the most common extraintedinal manifestations of amebiasis. Since the original reports by Collin and Nixon' and Opie,' a good number of accounts based on clinical and necropsy data have appeared in the literature. In the majority of cases, pulmonary involvement is secondaxy to hepatic involvement. In approximately 75 per cent of the case$ t...

Entamoeba dispar, a common noninvasive parasite, is indistinguishable in its cysts and trophozoite forms from Entamoeba histolytica, the cause of invasive amebiasis, by microscopy. To differentiate the two species seems to be a problem for laboratory diagnosis. Recent experimental studies showed that  E. dispar can be considered pathogenic too. We present a rare case of enteritis due to E. dispar.

In an analysis of the molecular factors triggering amebiasis, we investigated the chemotaxis of Entamoeba histolytica toward tumor necrosis factor (TNF) in vitro, using quantitative imaging techniques. Our findings enabled us to propose a hitherto unknown role for TNF as a chemokinetic and chemoattractant agent for this parasite.