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New Cryptosporidium Genotypes in HIV-Infected Persons

Norman J. Pieniazek, Fernando J. Bornay-Llinares, Susan B. Slemenda and 5 more

Emerging Infectious Diseases · 1999

doi:10.3201/eid0503.990318

Abstract

Using DNA sequencing and phylogenetic analysis, we identified four distinct Cryptosporidium genotypes in HIV-infected patients: genotype 1 (human), genotype 2 (bovine) Cryptosporidium parvum, a genotype identical to C. felis, and one identical to a Cryptosporidium sp. isolate from a dog. This is the first identification of human infection with the latter two genotypes.

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