But Hartmann sees this as less of a concern for people who do live together. "People who live together share a higher proportion of the microbes in their mouth than people who don't," she says. "I do… [+2057 chars]
Your toothbrush is bristling with bacteria - BBC
Bacteria from our toilets, the cold sore virus and thrush-causing yeast can thrive on our toothbrushes. But there are ways to keep your toothbrush a little cleaner.
