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  • Title: Enterocytozoon bieneusi, giardia, and Cryptosporidium infecting white-tailed deer.
    Author: Santin M, Fayer R.
    Journal: J Eukaryot Microbiol; 2015; 62(1):34-43. PubMed ID: 25066778.
    Abstract:
    Despite a white-tailed deer (WTD) population in the United States of approximately 32 million animals extremely little is known of the prevalence and species of the protists that infect these animals. This study was undertaken to determine the presence of potential human protist pathogens in culled WTD in central Maryland. Feces from fawns to adults were examined by molecular methods. The prevalence of Enterocytozoon bieneusi, Cryptosporidium, and Giardia was determined by PCR. All PCR-positive specimens were sequenced to determine the species and genotype(s). Of specimens from 80 WTD, 26 (32.5%) contained 17 genotypes of E. bieneusi. Four genotypes were previously reported (I, J, WL4, LW1) and 13 novel genotypes were identified and named DeerEb1-DeerEb13. Genotypes I, J, and LW1 are known to infect humans. Ten (12.5%) specimens contained the Cryptosporidium deer genotype, and one (1.25%) contained Giardia duodenalis Assemblage A. The identification zoonotic G. duodenalis Assemblage A as well as four E. bieneusi genotypes previously identified in humans suggest that WTD could play a role in the transmission of those parasites to humans.
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