Zoonotic transmission of Cryptosporidium parvum: Implications for water-borne cryptosporidiosis |
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| Authors: | Graczyk T K Fayer R Cranfield M R |
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| Affiliation: | Department of Molecular Microbiology and Immunology, Johns Hopkins University, School of Hygiene and Public Health, 615 North Wolfe Street, Baltimore, MD 21205-2179, USA. tgraczyk@phnet.sph.jhu.edu |
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| Abstract: | The emergence of Cryptosporidium parvum-associated cryptosporidiosis as a worldwide zoonosis has stimulated interest in the modes of pathogen transmission. Here, Thaddeus Graczyk, Ronald Fayer and Michael Cranfield discuss the complex epidemiology of C. parvum, emphasizing the crosstransmission potential of the pathogen, mechanical vectors involved in water-borne transmission of the oocysts, and factors contributing to contamination of pristine waters with Cryptosporidium. They also outline the public health importance of proper interpretation of positive detection of Cryptosporidium oocysts at water-treatment facilities and identify means by which watersheds can be protected from Cryptosporidium contamination. |
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