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Acta Veterinaria Hungarica
Authors: Alexandra Valenčáková, P. Bálent, M. Húska, F. Novotný and Lenka Luptáková

Encephalitozoon intestinalis infection of sows is reported from a pig farm in Slovakia. Spores were detected by direct microscopic visualisation in the faeces of 25 out of 27 sows (92.6%). This finding was also supported serologically by the presence of specific anti-E. intestinalis antibodies and by a species-specific polymerase chain reaction (PCR). This is the first report on E. intestinalis infection of swine in Europe.

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Acta Veterinaria Hungarica
Authors: Alexandra Valenčáková, Monika Halánová, P. Bálent, Emília Dvorožnáková, Erika Jamborová, F. Lešník, F. Neuschl, L. Páleník and Lýdia Čisláková

Several indicators ofimmune response were observed in immunocompetent mice of the ICR line and those suppressed by dexamethasone upon their experimental infection with the microsporidia of Encephalitozoon cuniculi. The mice were infected by one-shot intraperitoneal administration of 5×107 pathogenic spores. On Days 7, 14, 28 and 42 after infection, peripheral blood leukocyte phagocytic activity was determined and compared, including phagocytic index and the blastogenic response in spleen cells to mitogenic activation by concanavalin A and phytohaemagglutinin. The results point to the fact that E. cuniculi itself can cause a significant decrease in phagocytic activity of phagocytic leukocytes in the early stages of infection as well as a remarkable decrease in the proliferative response of spleen cells to T-cellular mitogens.

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