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:Slovak term: [[Slovenský termín]]
# An obligate, intracellular, coccidian parasite with a complex life cycle (WHO 2004).
# Genus of parasites of the intestinal tracts of fishes, reptiles, birds, and mammals (WHO,WMO, UNEP 2003).

==Explanation==
Cryptosporidium is one of the best examples of an “emerging disease”-causing organism. It
was discovered to infect humans only in 1976, and waterborne transmission was confirmed
for the first time in 1984.

Cryptosporidium is considered as reference pathogen for the enteric protozoan pathogens
(WHO 2009).

Cryptosporidium is a small protozoan parasite that infects the microvillous region of
epithelial cells in the digestive and respiratory tract of vertebrates. It is an obligate
intracellular parasite of man and other mammals, birds, reptiles and fish. It requires its
host to multiply (WHO 2009)

==Example==
The genus Cryptosporidium has about eight species, of which C. parvum is responsible for
most human infections (Cryptosporidiosis), although other species can cause illness.

==References==
* WHO (2004), [http://www.who.int/water_sanitation_health/dwq/gdwq0506.pdf Guidelines for Drinking-water Quality, 3rd ed, vol 1. pages 262-263].
* WHO, WMO, UNEP (2003), [http://www.who.int/globalchange/publications/cchhbook/en/index.html Climate change and human health: risks and responses].
* WHO (2009) [http://www.who.int/water_sanitation_health/publications/cryptoRA/en/index.html Risk assessment of Cryptosporidium in drinking water]

==Links==
* [http://apps.who.int/thelexicon/ WHO — The Health and Environment Lexicon]

[[Category:EN]]

Cryptosporidium - História úprav

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