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Results for “TREMATODE INFECTIONS”

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At least 343 records · Page 19Linked to original sources
PubMed1991

Diphyllobothrium, Anisakis and other fish-borne parasitic zoonoses.

Fish-borne parasitic zoonoses such as anisakiasis and diphyllobothriasis occur infrequently in Canada and more work needs to be done on the interactions and transmission dynamics of marine and freshwater anisakids in North America. The diphyllobothriid tapeworms are primarily restricted to the northern Canada. Problems with the specific identification of these parasites from their fish hosts prompted the development of a series of nucleic acid probes. Use of the polymerase chain reaction proved to be quick, accurate and requires little skill, once developed.

Animals↗
PubMed1990

[Helminthiases].

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Adolescent↗
PubMedDate not supplied

Dicroceliasis (lancet fluke disease) in an HIV seropositive man.

Dicroceliasis is an unusual zoonotic trematode infection caused by the lancet liver fluke, Dicrocoelium dendriticum. Grazing herbivores (usually sheep or cattle) are the definitive hosts. The life cycle proceeds through two intermediate hosts: the land snail and the field ant. Human infection is acquired by consuming the field ant. This case report describes a human immunodeficiency virus-seropositive patient who presumably acquired this parasite from bottled water contaminated with ants. A brief discussion of the parasitology, pathology, clinical findings and treatment is presented.

Adult↗
PubMed1988

Helminths of swallows of the mountains of Colorado, including Acuaria coloradensis n. sp. (Nematoda: Spirurata).

Thirty-three tree swallows, Iridoprocne bicolor, and 5 violet-green swallows, Tachycineta thalassina, from the eastern slope of the Rocky Mountains of northern Colorado were examined for helminths. Six species were found: Diplotriaena obtusa, Acuaria coloradensis n. sp. (Nematoda); Vitta magniuncinata, Angularella audubonensis (Cestoda); Plagiorchis maculosus (Trematoda); Mediorhynchus papillosus (Acanthocephala). The new species is most similar to A. multispinosa Perez Vigueras, 1937, but has 11 pairs of anal papillae and spicules measuring 125 micron and 140 micron.

Acanthocephala↗
PubMed1987

[Anthelmintics].

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Anthelmintics↗
PubMed1985

Transmission of Schistosoma haematobium in North Gezira, Sudan.

During this 14-month study, 128 765 Bulinus truncatus snails were collected from canals located near four villages in the northern part of the Gezira Irrigated Area, and were examined for patent trematode infections, by exposure to light. In all, 903 shedded cercariae, of which 424 were identified as S. haematobium, and one village, Bashagra, was the source of 80% of these S. haematobium infections. The highest density of snails occurred from March to May and the peak of snail infections occurred from June through August. The residents of the four villages and any adjacent small camps were examined for infection with S. mansoni and/or S. haematobium by collecting and examining stool and urine samples. The overall prevalences were 50% for S. mansoni and 20% for S. haematobium. The age prevalence curves were very different, with the prevalence of S. haematobium falling off more sharply in the over-20 age groups than was the case with S. mansoni. Observations at the human water contact sites suggested that the transmission of S. haematobium was increased when the canals contained shallow stagnant water, when the temperature was above 26 degrees C, and when the site was frequented by small children (particularly boys aged 5-15), for swimming. Our data suggest that at any site the transmission period is short and seasonal.

Adolescent↗