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A 40-year-old member asked:

i heard viruses and protozoa are spread by contaminated water.is this true?

1 doctor answer3 doctors weighed in
Dr. Martin Raff
Infectious Disease 56 years experience
Contaminated ?: By what? Fecal contamination of water (which is present in all non-treated water) will cause it to contain bacteria and protozoans, both of which can then be transmitted to humans who drink it (e.g., salmonella, giardia). Some of the protozoans at least may carry other organisms (e.g., legionella). Viruses are contained within other cells and could conceivably be carried and transmitted.

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Last updated Dec 10, 2012
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