A study out of Canada is hypothesizing that tap water could be a source of at least one virus that annually plagues Canadians:
Norwalk virus.
University of Toronto researchers, comparing Norwalk outbreaks to river water flow and lake temperatures, theorize that a near-endless "feedback loop" sends the virus from human waste to surface waters, then to water treatment plants that are unable to eliminate the bug, and finally back into household faucets.
How to stop the cycle?
The theory, if proven, raises the question of whether tap water should be treated with ultraviolet exposure, virtually the only way to kill the hardy viruses, the researchers say.
Yet another reason for me to eschew water and stick to drinking Coke Zero.
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