Despite recent advances in diagnostic technology, microscopic examination of stool specimens remains central to the diagnosis of most pathogenic intestinal protozoa. Microscopy is, however, labor-intensive and requires a skilled technologist. New, highly sensitive diagnostic methods have been developed for protozoa endemic to developed countries, including Giardia lamblia (syn. G. intestinalis/...

Specimen 1 Organisms Referees Frequency Ext 1 Ext 2 571 Ascaris lumbricoides 18 Moderate to Many 15 49 545 Entamoeba coli 10 Moderate to Many 4 16 589 Schistosoma mansoni 6 Few to moderate 3 11 524 Parasite(s) found referred for ID 10 580 Trichuris trichiura 3 Few to moderate 6 544 Endolimax nana 2 2 574 Hookworm 1 546 Entamoeba hartmanni 1 548 Entamoeba histolytica / Entamoeba dispar 1 566 Hym...

Unlike acute diarrhea, the role of pathogens in persistent diarrhea in children in Nepal is unclear. Protozoal parasites are suspected to be a major cause. The study was carried out to find the association between protozoal agents and persistent diarrhea in children below age 5 years from western Nepal. Stool samples were collected from 253 children with persistent diarrhea, from 155 children w...

In the present paper some aspects of the biology and various factors influencing the potential for environmental contamination with protozoan parasites infective stages implicated in water and foodborne diseases are described. The major protozoan species that affect humans are Entamoeba histolytica, Acanthamoeba sp., Neagleria sp. Giardia intestinalis, Cryptosporidium parvum, Cyclospora cayetan...