Cryptosporidium parvum is a parasitic protozoan belonging to the phylum Apicomlexa and is one of several genera that are referred to as coccidia. It causes cryptosporidiosis in susceptible humans and non-human hosts.
These waterborne parasites can be transferred to food from infected food handlers or from contaminated water used to irrigate or wash fruits or vegetables.
It has been speculated that many other unidentified cases of waterborne outbreaks of gastroenteritis may have been caused by this parasite.
Infection with Cryptosporidium parvum resulted in severe watery diarrhea which last between several days and two to three weeks in previously healthy persons.
Patients may also experience mild abdominal pain and fever. It also can cause coughing and low grade fever accompanied by severe intestinal distress.
Cryptosporidium infects many herd animals such as cows, goats, and sheep and has also caused outbreaks in apple cider and homemade chicken salad.
A major means of parasite transmission is via drinking water, because of the use of untreated surface water contaminated distribution systems, or water treatment facilities employing only chlorine disinfection protocols.
Water has been associated with numerous disease outbreaks.
Cryptosporidium parvum
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