the prevalence of various intestinal helminthiases among the inhabitants of 7 villages was compared with that among the nomadic bakhtiari tribe with its migratory habits. stool examination of 736 nomads and 784 persons of the same ethnic group settled in 7 villages showed that, among the settled population, the pre­valence of infection with ascaris, trichostrongylus spp., trichuris trichiura, h...

notes on pathogens 1. Staphylococcus aureus. S. aureus produces six types of enterotoxins (A to F). The type A is most often incriminated in outbreaks of staphylococcal food poisoining. Acute staphylococcal food poisoining is caused by the ingestion of preformed toxin contaminated food (often diary products). The incubation period is 2-6 hours and it is associated with an acute onset of nausea ...

dicrocoelium dendriticum is 10 by 2 mm. trematodes which live in the liver of the cattle, goats and sheep but it occasionally infects the human being. during the study of intestinal infections in the caspian sea region 2 cases of dicrocoeliasis were found. the method for diagnosis was formol-ether concentration technique for stool examination. these two patients had eosinophilia and vague abdom...

Introduction: Helicobacter pylori infection has various clinical features. One of the most common presentations of this infection is upper abdominal pain. Complications such as gastritis, gastric ulcer, gastric carcinoma and MALT lymphoma mandate early diagnosis of H.P infection by a low cost and non invasive manner. The aim of this study was to evaluate the diagnostic role of H.P stool antige...

BACKGROUND/AIMS Fasciola hepatica is a rare zoonotic parasite that infects the liver of many mammals including humans. The aim of this study was to determine the seroprevalence of fascioliasis in Van province by ELISA (antibody detection) on the assumption that not all cases could be detected by stool examination alone. MATERIALS AND METHODS A total of randomly selected 1,600 patients, direct...

Survey of sanitation conditions by qualitative sanitation measurement were carried out in three districts, Chachoengsao Province, Thailand. The sanitation of each household was assessed in terms of positive stool examination and scores of seven main sanitary activities which were used to classify each household's sanitation as hygienic or non-hygienic. Stool collections were made from each hous...

introduction: helicobacter pylori infection has various clinical features. one of the most common presentations of this infection is upper abdominal pain. complications such as gastritis, gastric ulcer, gastric carcinoma and malt lymphoma mandate early diagnosis of h.p infection by a low cost and non invasive manner. the aim of this study was to evaluate the diagnostic role of h.p stool antigen...

human infection with the coccidia parastite, isospora belli is relatively uncommon. human isosporiasis in iran was first reported by hadjian in 1961. 5 yearly, about 200 stool samples have been examined by direct and formol-ether concentration techniques in the protozoology unit, school of public health, tehran university of medical sciences. in addition to the common protozoal and helminthic i...