Microbes are everywhere – thousands of species are in your mouth, and thousands are in a glass of tap water. The ones in your mouth are mostly harmless – as long as you brush and floss so they don't form a biofilm that allows gum disease a path into the blood stream.
Microbes in the tap water delivered by modern water systems in a developed country are also mostly harmless – with some notable exceptions.
A team of Virginia Tech researchers is investigating the challenges presented by four often deadly pathogens that have been documented in household or hospital tap water. They propose fighting these opportunistic pathogens with harmless microbes – a probiotic approach for cleaning up plumbing.
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