Update on Cryptosporidium and Giardia infections in cattle

Cattle are frequently parasitized with Giardia duodenalis, Cryptosporidium parvum and Cryptosporidium andersoni. These parasites cause diarrhoea and impair gain of body weight. Giardia and Cryptosporidium from cattle are potential zoonotic pathogens, and contact with animals, manure or contaminated...

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Bibliographic Details
Published in:	Trends in parasitology Vol. 20; no. 4; pp. 185 - 191
Main Authors:	Olson, Merle E, O'Handley, Ryan M, Ralston, Brenda J, McAllister, Timothy A, Andrew Thompson, R.C
Format:	Journal Article
Language:	English
Published:	Oxford Elsevier Ltd 01-04-2004 Elsevier
Subjects:	Animal protozoal diseases Animals Biological and medical sciences Cattle Cattle Diseases - epidemiology Cattle Diseases - parasitology Cattle Diseases - transmission Cryptosporidiosis - epidemiology Cryptosporidiosis - parasitology Cryptosporidiosis - transmission Cryptosporidiosis - veterinary Cryptosporidium Cryptosporidium - pathogenicity Cryptosporidium andersoni Cryptosporidium hominis Cryptosporidium parvum Cryptosporidium parvum - pathogenicity Disease Reservoirs - veterinary Experimental protozoal diseases and models Giardia Giardia - pathogenicity Giardia duodenalis Giardiasis - epidemiology Giardiasis - parasitology Giardiasis - transmission Giardiasis - veterinary Humans Infectious diseases Medical sciences Parasitic diseases Protozoal diseases Public Health Zoonoses Infection Parasite Protozoa Cryptosporidium Apicomplexa
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Summary:	Cattle are frequently parasitized with Giardia duodenalis, Cryptosporidium parvum and Cryptosporidium andersoni. These parasites cause diarrhoea and impair gain of body weight. Giardia and Cryptosporidium from cattle are potential zoonotic pathogens, and contact with animals, manure or contaminated water is believed to lead to infections in humans. Molecular epidemiology has suggested that cattle are not as significant a reservoir for human infections as was once believed. Most G. duodenalis from cattle (Assemblage E) are different from those in humans (Assemblages A and B), and C. andersoni does not infect humans. However, molecular tools have shown that humans can be infected with zoonotic C. parvum, as well as anthroponotic Cryptosporidium hominis.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1
ISSN:	1471-4922 1471-5007
DOI:	10.1016/j.pt.2004.01.015