Cryptosporidium infections in inbred strains of mice.

F. J. Enriquez, C. R. Sterling

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31 Scopus citations


Cryptosporidium, a protozoan parasite of man and animals, is an important etiological agent of diarrhea throughout the world, particularly in children and immunocompromised individuals such as AIDS patients. Unfortunately, because of the lack of both in vivo laboratory models and reliable in vitro parasite culture systems, virtually nothing is known about the immunological events occurring during disease. In order to identify reliable animal models for infection, we studied C. parvum infections in 19 different strains of mice representing 12 H-2 haplotypes: A/J, AKR/J, B10.D2/J, B10.M/J, C3H/HeJ, C57BL/65, C57BL/6J-bgJ, CBA/NJ, DBA/1J, DBA/2J, HRS/J, HTG/J, NZB/B1NJ, NZW/J, P/J, RIII/J, SJL/J, SWR/J, and WB/ReJ, and in one gerbil: Meriones unguiculatus. Fecal samples and histological sections of the intestine taken on day 7 post-Cryptosporidium inoculation indicated that only the beige mouse (C57BL/6J-bgJ) harbored significant numbers of parasites compared to the other strains. The numbers of parasites harbored in these NK cell-deficient beige mice were, however, considerably lower than those seen in neonatal mice. Adult inbred mouse strains susceptible to Cryptosporidium infections are discussed.

Original languageEnglish (US)
Pages (from-to)100S-102S
JournalThe Journal of protozoology
Issue number6
StatePublished - 1991

ASJC Scopus subject areas

  • Parasitology


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