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Emerging Infectious Diseases logoLink to Emerging Infectious Diseases
. 1999 May-Jun;5(3):444–449. doi: 10.3201/eid0503.990318

New cryptosporidium genotypes in HIV-infected persons.

N J Pieniazek 1, F J Bornay-Llinares 1, S B Slemenda 1, A J da Silva 1, I N Moura 1, M J Arrowood 1, O Ditrich 1, D G Addiss 1
PMCID: PMC2640774  PMID: 10341184

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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