The Parasite — University of Minnesota Press
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Trends of parasite. In other languages parasite. British English : parasite NOUN A parasite is a small animal or plant that lives on or inside a larger animal or plant, and gets its food from it. Translate your text for free. Nearby words of parasite. Translation of parasite from the Collins French to English. After their release in the ileum the metacercariae of these flukes penetrate the intestinal wall to reach the peritoneal cavity and then migrate to the lungs by crossing the diaphragm and the pleural space.
ISBN 13: 9782246008774
Within the lung parenchyma each induces an intense but localized necrotic inflammatory reaction which ultimately gives rise to a cyst or abscess cavity. The capsule surrounding the parasite swells as the fluke matures, and after some weeks the parasites start producing eggs that are liberated into the bronchioles and ascend the airways to reach the gastrointestinal tract. It is unusual to find more than 20 cysts, each harbouring one or two worms. These usually live for years but some have been known to survive for up to 20 years. Light infections are asymptomatic, but if large numbers of flukes remain untreated they can cause chronic bronchitis, bronchiectasis, pleural effusion and fibrosis.
They can also develop to maturity in ectopic sites, particularly in the brain, where they may cause epilepsy, focal paresis and other signs of space-occupying lesions. Pulmonary paragonimiasis may produce clinical symptoms similar to or be associated with active tuberculosis.
Prevention of infection is dependent upon informing communities at risk of the danger of eating potentially infected or contaminated foods. Praziquantel has transformed the therapy of most fluke infections. Parasitological cure has been obtained in virtually all cases with the exception of Fasciola infections without significant adverse effect but it needs to be taken for several days in the treatment of Paragonimus infections. Limited evidence suggests that a single dose of the veterinary formulation of triclabendazole is effective and well tolerated in a high proportion of cases of both Fasciola and Paragonimus infections.
However, further clinical trials need to be evaluated before triclabendazole can be registered for human use.
It may be available for compassionate use on a named basis. Intestinal, liver and lung flukes At least 50 million people, largely in southern and eastern Asia but also in central and eastern Europe, are infected by food-borne flukes trematodes. Intestinal flukes The intestinal flukes include Fasciolopsis buski, Metagonimus yokogawai, Heterophyes heterophyes, Echinostoma spp and Gastrodiscoides hominis. Liver flukes The liver flukes include Clonorchis sinensis, Opisthorchis viverrini, O.
Lung flukes The lung flukes are of the genus Paragonimus.
About the Book
Prevention 1 1 For further information, see Control of foodborne trematode infections. Treatment 1 1 For further information, see Control of foodborne trematode infections. Amoebiasis and giardiasis.
Free-living amoebae. Meglumine antimoniate and sodium stibogluconate. Amphotericin B. Miscellaneous intestinal infection.