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Results for “INTESTINAL PARASITES”

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At least 991 records · Page 55Linked to original sources
PubMed1996

Intestinal parasitism in San Cayetano, Corrientes, Argentina.

An epidemiologic study was conducted in San Cayetano, a village in the province of Corrientes, Argentina, to determine the prevalence of intestinal parasitoses in children. Eighty-eight households were randomly selected. Stool samples were collected from 207 children (72% of the school-age population and 12% of the total village population) over a period of six consecutive days, and were subjected to microscopic examination. Of the samples examined, 170 (83%) contained one or more parasites, of which the most frequently found was Blastocystis hominis (in 43% of the samples). Other parasites and commensals detected included Giardia lamblia (29%), hookworms (27%), Entamoeba coli (27%), Enterobius vermicularis (4%), Strongyloides stercoralis (2%), and Ascaris lumbricoides, Trichuris trichiura, Taenia saginata, Isospora belli, Iodamoeba bütschlii, and Balantidium coli (each 0.5%). The high observed prevalence of intestinal parasitoses indicates active parasite transmission in San Cayetano as a result of poor environmental hygiene-ascribable largely to a lack of public water supply, sewerage, and waste removal services.

Adolescent↗
PubMed1995

Intestinal parasitic infections among rural farming communities in eastern Sierra Leone.

A study carried out in four rural, mainly farming villages in the Gorama Chiefdom, Kono District, Eastern Sierra Leone revealed that intestinal helminth infections are prevalent in this area of Sierra Leone. Out of the 1164 persons of all ages who were examined, 853 (73.5%) proved positive for at least one intestinal helminth infection. Ascaris lumbricoides was the most common helminth encountered (37.5%), followed by hookworms, 12.9%; Trichuris trichiura, 12.6%; Schistosoma mansoni, 5.6%; Strongyloides stercoralis, 3.8%; tapeworms 1.0%, and multiple infections were common. Adults used poorly built pit latrines, while children defecated indiscriminately and unsupervised around houses and in the nearby bush. In addition, in most of the villages, domestic water was obtained from polluted streams and rivers. Only one village had protected pipe borne water supply. The high prevalence of intestinal helminth infections in this area results from constant infection and reinfection caused by poor sewage disposal, poor environmental health, and the low socioeconomic status prevailing in these communities.

Adolescent↗
PubMed2005

[The occurrence of intestinal parasites of roe deer and red deer in the Western Pomerania voivodeship].

BACKGROUND: The aim of the study was to establish the parasite prevalence of roe deer and red deer in Western Pomerania. MATERIAL AND METHODS: The prevalence of the Coccidia and gastro-intestinal nematodes infection were determined by means of the Willis-Schlaaf necropsy method. The species composition of Eimeria was determined based on morphology of oocysts (shape, colour, form index, presence or absence of micropyle and its cap, presence or absence of residual, polar- and Stieda bodies), and time of sporulation. Sporulation was performed in a wet chamber at 24-26 degrees C in a 2.5% aqueous solution of potassium dichromate (K2Cr2O7). Fifty red deer and 57 roe deer were biopsied. RESULTS: Oocysts of the genus Eimeria were found in 52.07% roe deer and 74.57% red deer. Four coccidia species in roe deer (E. capreoli, E. panda, E. rotunda, and E. ponderosa) and two coccidia species in red deer (E. sordida, and E. elaphi) were found. 100% of roe deer and 47.82% of red deer were infected with gastro-intestinal nematodes. The following nematode species were found in the alimentary tracts: Spiculopteragia boehmi, Ostertagia kolchida, Ostertagia leptospicularis, Haemonchus contortus, Chabertia ovina, Oesophagostomum venulosum, Nematodirus sp., Trichocephalus ovis, and Capillaria bovis.

Animals↗
PubMed2006

Evidence of intestinal parasites of dinosaurs.

Protozoan cysts and helminth eggs preserved in a coprolite from the Early Cretaceous Bernissart Iguanodon shaft in Belgium demonstrate that representatives of 3 phyla parasitized dinosaurs by that period. These fossil parasite stages are described and their possible effect on dinosaurs discussed. These findings represent the earliest fossil records of protozoan and helminth parasites of terrestrial vertebrates.

Animals↗