(n.) An intestinal worm, or wormlike intestinal parasite; one of the Helminthes.
Example Sentences:
(1) This preliminary study estimates the occurrence of concurrent helminth infection in Africa and Brazil to determine whether such an approach is justified epidemiologically.
(2) All four significantly affected helminth motor activity and were active at 200 and 150 micrograms ml-1, and three of the four were active at 100 and 50 micrograms ml-1.
(3) It is suggested that this early immune maturity may play a role in the hardiness of WAD goats and in their relative resistance to helminth and protozoan infection as compared with local sheep.
(4) The presence of helminthic invasion of the liver--opisthordiasis resulted in hepatitis, pancreatitis that would not respond to therapy in patients with ALMS.
(5) Halogenated anthelmintics were not metabolized to GSH conjugates in the helminths studied and did not inhibit GSH-S-aryltransferase activity towards chlorodinitrobenzene.
(6) The possibility that the activities observed may contribute to the elimination of peroxide in the helminth system is considered.
(7) Our results indicated that analyses of helminth communities of deer from this geographical area do not provide a useful quantification technique for determining deer condition, degree of hybridization, or levels of intraspecific competition.
(8) Much more fundamental information on helminth-bovine interactions, on helminth antigens, and on cattle antibody systems must be developed before progress on control of cattle helminths by vaccination can be meaningful.
(9) The predominant helminth was Ancylostoma duodenale, with the peak prevalence (65.2%) in patients older than 18 years, followed by Ascaris lumbricoides and Strongyloides stercoralis.
(10) Recently we described a mathematical model of the role of acquired immunity in host-helminth interactions.
(11) In addition, a number of antiparasitic agents have been shown to exert their actions through a free radical metabolism: nitro compounds used against trypanosomatids, anaerobic protozoa and helminths; crystal violet used in blood banks to prevent blood transmission of Chagas' disease; the antimalarial primaquine, chloroquinine, and quinhasou; and quinones active in vitro and in vivo against different parasites.
(12) Results of the infection of golden hamsters with different dozes of cercariae have shown that with the increase of dozes of infectious material the infection rate of helminths rises during the experimental intestinal schistosomiasis only to a definite level, which is attained by the injection of cercariae into the portal vein in dozes lower than those used for subcutaneous infection.
(13) Total parasitic helminth burdens, which were never large, were determined in order to define their seasonal incidence.
(14) Out of a total of 140 male and 114 female dogs sampled for gastro-intestinal helminth ova, 122 males (87.14%) and 101 females (88.59%) respectively were infested.
(15) Cuban mosquitoes are an important factor in the transmission of both viral and protozoal and helminthic diseases.
(16) A total of 91 free-ranging black bears (Ursus americanus) from the Peace River region of northwestern Alberta was examined for helminths.
(17) Levamisole and Banminth affected the motility of the helminth larvae with subsequent death after 24h.
(18) A significant association was also found between distance from a river and prevalence of S. haematobium (r = 0.94) and S. mansoni (r = 0.95) (P less than 0.01), but not with the other helminth infections.
(19) In addition to the known human pathogenic helminths H. nana and H. diminuta, localized foci of hookworms (Ancylostoma spp.)
(20) The observation, in parasitic protozoa and helminths, that selfing or non-obligatory mating is a common feature suggests that these processes may be strategies to overcome the cost of meiosis.
Roundworm
Definition:
(n.) A nematoid worm.
Example Sentences:
(1) The prevalence of ascaris (roundworm) infection and the severity of protein-energy malnutrition were the same in the two groups at the onset of the study.
(2) Solid organ transplant recipients can experience serious disease and death from infection due to the parasitic roundworm Strongyloides stercoralis.
(3) One hundred children aged 24-72 months who had history of passing roundworms during the preceding 12 months were compared with 100 children without such history.
(4) For example, in visceral larva migrans, caused by the dog roundworm Toxocara canis, only palliative therapy with systemic anti-inflammatory agents and corticosteroids may be helpful.
(5) There were no significant relationships between number of households per latrine at each community and the prevalence and intensity of infection by hookworms and prevalence of roundworms.
(6) A series of field trials involving some 2000 different animals was conducted to determine the response in liveweight from anthelmintic treatment for roundworms.
(7) School-age children were found to have the highest risk for both roundworm infections and multiple parasitic infections.
(8) Retrograde cholangiography was carried out in 4 small children with suspected roundworm infestation of the biliary tree.
(9) Nematoda (true roundworm) infections include ankylostomiasis, strongyloidiasis, gnathostomiasis, gongylonemiasis, trichinosis, dracunculosis, loaiasis, filariasis, dirofilariasis, and onchocerciasis.
(10) Worm infections were reduced in the treated market-weight pigs: by 96% (P less than 0.05) for the large roundworm (Ascaris suum), 77% (P less than 0.01) for nodular worms (Oesophagostomum spp), and 64% (P less than 0.01) for the intestinal threadworm.
(11) In order to help validate the free-living roundworm, C.e., as a simple model to study the mechanism of general anesthesia, we demonstrated that homologous series of alcohols and alkanes produced a reversible "anesthetic" effect in these worms as in other animals.
(12) Diarrhea, roundworm infestation and measles were not positively correlated with xerophthalmia but whooping cough and tuberculosis were.
(13) Emphasis is placed on the commoner filarial and mermithid nematodes, but several other unusual and rare roundworm parasites are also discussed.
(14) The dominant fly species Chrysomya megacephala (Fabricius) carried eggs of the roundworm Ascaris lumbricoides L., the pinworm Trichuris trichiura (L.) and hookworm on the adult external body surface and in the gut lumen, in association with Bukit Lanjan aborigines.
(15) Mebendazole has been found to be ovicidal for the eggs of roundworm, hookworm, and whipworm with the disadvantages of cost and long duration of therapy; it is also considered the best drug for the treatment of trichuriasis.
(16) Following infection of mice with larvae of the canine roundworm Toxocara canis, there is a persistent pneumonitis.
(17) Vomiting of roundworms during biliary colic occurred in 19 patients (48%) and often led to confirmation of biliary ascariasis by direct visualization of the biliary tree.
(18) In the first patient, cholecystectomy was curative and corroborated the presence of the roundworm.
(19) A case of migration of a gravid female roundworm into the peritoneal cavity is reported.
(20) Analysis of results focused on 3 questions related to prevention: practitioner's frequency of client education regarding zoonotic potential of roundworms and hookworms, pup age at which veterinarian recommends first anthelmintic treatments, and proportion of veterinarians recommending prophylactic drug administration for pups and nursing bitches.