UNLABELLED A cross-sectional molecular epidemiological study of Entamoeba species was conducted among asymptomatic Kenyan children with (n = 123) and without (n = 111) HIV infection. The prevalence of E. histolytica was low (0.4%). Entamoeba species infection was inversely related with HIV infection [HIV(+): 29.3% vs. HIV(-) 55.0%, P < 0.001]: multiple-species infection was related to higher ...

In Japan, amebiasis is domestically transmitted by two major populations: male homosexuals and mentally handicapped persons, which is remarkably different from most other developed countries where Entamoeba dispar infection is predominantly observed. Here we briefly summarize epidemiology of amebiasis in Japan. We also review our current understanding of the diversity of Entamoeba histolytica c...

In recent years, substantial progress has been made in understanding the molecular and cell biology of the human parasite , an Entamoeba histolytica important pathogen with significant global impact. This review outlines some recent advances in the field in the last five years, focusing on areas Entamoeba that have not recently been discussed in detail: (i) molecular mechanisms regulating paras...

We report the first comprehensive analysis of transposable element content in the compact genomes (approximately 20 Mb) of four species of Entamoeba unicellular protozoans for which draft sequences are now available. Entamoeba histolytica and Entamoeba dispar, two human parasites, have many retrotransposons, but few DNA transposons. In contrast, the reptile parasite Entamoeba invadens and the f...

The mobility patterns of four enzymes using cultured trophozoites of Entamoeba histolytica were examined by electrophoresis. By this means the stocks of amoebae isolated from male homosexuals were characterised into zymodemes. No amoebic stock isolated corresponded to a pathogenic zymodeme.

Cardiac tamponade secondary to perforation of a hepatic amoebic abscess developed six years after the patient had visited an area where Entamoeba histolytica is endemic. He was treated with metronidazole and imipenem, emergency percutaneous catheter drainage, and open surgical drainage.

Natural transmission of Entamoeba histolytica from infected mother cynomolgus monkeys (Macaca fascicularis) to their newborn infants was investigated by the stool examination under indoor individually-caged conditions. Every infant became positive for E. histolytica between 5 and 10 weeks after birth. Although some infants were demonstrated to harbor the trophozoites, no overt amebic diarrhea o...

An enzyme-linked immunosorbent assay (ELISA) for detecting antibody against Entamoeba histolytica was used in a survey to determine the prevalence of E. histolytica infection in the greater Tokyo area. Serum samples were collected from 1,869 randomly chosen, symptom-free volunteers (1,645 males and 224 females). Seventeen individuals (0.91%), 14 males and three females, had ELISA values that we...

Giardia duodenalis, Cryptosporidium spp., and Entamoeba spp. are intestinal protozoa capable of infecting a range of host species, and are important causes of human morbidity and mortality. Understanding their epidemiology is important, both for public health and for the health of the animals they infect. This study investigated the occurrence of these protozoans in rhesus macaques (Macaca mula...