A team of microbiologists discovered a collection of thriving, diverse, and mostly new-to-science viruses on toothbrushes and showerheads. Before you freak out and toss your toothbrush, though, you should know that these aren’t the kind of viruses that make humans sick. The researchers at Northwestern University Read More ... The post What’s growing on your toothbrush? first appeared on Jax Examiner.