Running head: DRINKING WATER AND HUMAN HEALTH ASSIGNMENT
Drinking Water And Human Health Assignment
DRINKING WATER AND HUMAN HEALTH ASSIGNMENT
Protozoa Cryptosporidium & Giardia
1. List and discuss similarities and differences between giardia and cryptosporidium.
Similarities between giardia and cryptosporidium
Both are waterborne diseases and are spread through swallowing of the parasite from
contaminated water and food.
Both oocysts survive in human intestines and also the animals.
Both organisms produce protective cysts which enable the microorganism to survive
on the environment until the host ingests it.
Both can cause diarrhoeal illnesses in the intestines
Cryptosporidium symptoms on the host appear between one to seven days after
infection, whereas giardia symptoms are felt between 1o days to 25.
2. Assume that you are a healthy individual. Describe what happens to you during the
three- week period after you have been infected by cryptosporidium and come down
After infection of the parasite, the patient develops signs and symptoms in the first week.
Such as watery diarrhoea which follows d...
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