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. 1980 Sep 1;21(3):415–427. doi: 10.1186/BF03546874

Listeriosis in Sheep

Experimental Listeric Infection in Sheep Treated with Various Immunosuppressiva

Listeriose hos sau. Eksperimentell infeksjon med Listeria monocytogenes hos sauer behandla med ulika immunosuppressiva

Hallstein Grønstøl 1,✉
PMCID: PMC8317754  PMID: 7446323

Abstract

Four groups of lambs, about 6 months old, were given 4 different immunosuppressiva (prednisolone, cyclophosphamide, niridazole and gestagene hormones), 1 substance to each group. After this treatment the 4 groups together with a 5th group of the same size, were infected with Listeria monocytogenes (Lm).

None of the animals developed clinical listeric encephalitis. The level of antibodies differed between the groups. The group not given any immun osuppressivum reached the highest antibody titres, the group given gestagene hormones had the lowest titres and the other groups ranged somewhere inbetween. All the groups except the group treated with niridazole had a strong delayed hypersensitivity reaction against Lm. The effects of the treatment upon some blood components are also described.

Further studies are necessary to establish the effect of various immunosuppressiva, especially gestagene hormones.

Keywords: sheep, Listeria monocytogenes, prednisolone, cyclophosphamide, niridazole, gestagene hormones, immunity, blood components

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Footnotes

This work was supported by grants from the Norwegian Agricultural Research Council.

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