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Clinical manifestations of chronic, uncomplicated and severe, complicated disseminated strongyloidosis of a patient infected with Strongyloides stercoralis are shown. Cutaneous, gastrointestinal, hepatobiliary, pulmonary, rheumatic, neurological, psychiatric symptoms, as well as those of genitourinary, and cardiovascular systems and other clinical manifestations are discussed.
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The occurrence of different parasites in roe (Capreolus capreolus), and red deer (Cervus elaphus) were examined during the period 1972-1995. Deer shot at random or found dead were examined and parasitological status of a farmed red deer herd has been observed regularly. Age, carcass weight, physical condition and pathological features were checked or measured. Of the parasites, 38 species in roe and 18 in red deer were identified and at least 11 of them were shared by both hosts. None of them seems to be pathogenic for these hosts, not considerating local alterations. Disease or mortality together with excessive parasite burden were found only in specimens or herds living in captivity. Beside lungworms, protozoans as well as hair louse may occur in high intensity due to the stress-related diathesis of the host organism. Therefore the relation of deer and their native parasites can be considered as a coexistence rather than a harmful impact of the latter. Parasites of direct development can serve as bioindicators, monitoring the health status of the host individuals, herds or their habitat quality. Finally, the indigenous parasitofauna of roe and red deer and the large variety of their other intermediate and final hosts represent a colourful example of biodiversity.
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Parasite diseases of the lung comprise a wide group of nosological entities. The main parasite diseases of the lung (malaria, ambiasis, bilharziosis, distomatosis, hydatidiasis) as well as the eosinophilic lung will be discussed in specific articles in the journal. Other parasite diseases of the lung are discussed here after studying the general aspects of pulmonary parasite diseases.
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Advanced knowledge of the epizootiology of parasitic gastroenteritis and the introduction of new anthelmintics and new application systems allow new strategies to control parasites of cattle on pastures. Ideally, parasitic gastro-enteritis is prevented by evasive grazing, i.e. the animals are driven every two weeks to new and not yet contaminated pastures, and the application of anthelmintics is not necessary. Midsummer treatment is most effective when combined with a move to non-contaminated pastures (Weybridge dose and move system). Following the introduction of the slow-release-devices, the prophylaxis of parasitic gastro-enteritis became much easier. The device, which is usually called bolus, is administered before turnout and it results in an effective reduction of the infection risk throughout the grazing season. Treatment following 3, 6 and 9 weeks after turnout prevents the development of dangerous numbers of infective larvae on the pasture in the second half of the grazing season. This system is known as Glasgow model. The pulse-release boluses follow the same principle and they offer the advantage of application at turnout and of releasing the anthelmintic in full doses at intervals. Treatment at the beginning of housing is only necessary when measures to prevent parasitic gastro-enteritis during the grazing season were not sufficient. All strategic measures reduce the risk of lung worm disease, but they do not prevent lung worm infection completely. On farms with a high lung worm pressure, additional control measures may be necessary. In areas with high risk of liver fluke infection, treatment in July may reduce pasture contamination.(ABSTRACT TRUNCATED AT 250 WORDS)
The lesions associated with parasitic infestation in 1156 wild-caught, laboratory-maintained nonhuman primates (Macaca fascicularis, Macaca mulatta, and Papio spp) are described. The two most common parasites seen were lung mites (Pneumonyssus spp) and nodular worms (Oesophagostomum spp). In addition, in cynomolgus monkeys (Macaca fascicularis) only, Nochtia nochti was a frequent pathogen. The etiology of mineralized fibrotic nodules in the mesentery of cynomolgus monkeys was thought to be infection with Paragonimus westermani, the oriental lung fluke.
The study concerning internal and external parasites in deer was conducted in selected Lower Silesia forest inspections from May 1988 till June 1992. Coproscopic method and section were applied. Only in roe-deer the highly extensive invasion of gastrointestinal nematodes was observed (from 50% to 81%, depending on inspections). Most frequent were the Ostertagia (60%) and Nematodirus (30%) types. Another problem, mainly in mouflons, were lung nematodes of Protostrongylidae family, of which the Muellerius capillaris was dominating. Of the external parasites, an infection of Lipoptena cervi was discovered in roe-deer and stag, and Ixodes ricinus appeared most frequently; in Lower Silesia appeared the lung nematodes which could be the reason for disease, particularly in mouflon. Source of the infection were probably sheep brought to that region from Podhale for pasturage.
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