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. 1991 Oct;59(10):3823-6.
doi: 10.1128/iai.59.10.3823-3826.1991.

Persistent cryptosporidiosis in horses with severe combined immunodeficiency

J M Bjorneby  1 , D R Leach, L E Perryman
Affiliations

Persistent cryptosporidiosis in horses with severe combined immunodeficiency

J M Bjorneby et al. Infect Immun. 1991 Oct.

Abstract

Cryptosporidial infections were established in five young foals with severe combined immunodeficiency following oral administration of 10(8) Cryptosporidium parvum oocysts. All foals shed oocysts (average of 8 x 10(6) to 2 x 10(8)/g of feces) until death. Inflammation and C. parvum organisms were observed in the common bile duct, duodenum, jejunum, and ileum. Since foals with severe combined immunodeficiency lack functional T and B lymphocytes and are incapable of antigen-specific immune responses, they are well suited for evaluating the pathogenesis and treatment of persistent cryptosporidiosis.

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References

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