Biology of Microorganisms Study Set 2
Quiz 35 :
Wastewater Treatment, Water Purification, and Waterborne Microbial Diseases
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Q88 Q88 Q88
Fifteen high school students visited a local farm in central Wisconsin for a weekend where they enjoyed petting farm animals, riding horses, and campfire meals. With sanitation in mind, only one individual remembered to wash her hands with water pumped from a well after petting the animals before dinner. After two weeks of the girl passing out at random occasions, she was rushed into the emergency room where doctors determined she was severely dehydrated. Explain how it took direct observation of a fecal sample to solve this potential life- threatening disease and how this disease was treated in the otherwise healthy girl. Also mention any necessary precautions the individual should have taken after being diagnosed with the disease.
Q90 Q90 Q90
Backpacking in the wilderness rarely involves carrying bulk quantities of water while hiking, so water is often obtained on a daily basis from natural water sources such as rivers and streams. In situations such as this, what is the preferred method to kill all living cells in the water, and why are other possible methods less favorable?