Many people have no idea what their risk is—until it's too late.

Add Yahoo as a preferred source to see more of our stories on Google. Olivia Munn's revelation that she is battling breast cancer put an important spotlight on a tool used to help determine a person's ...

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An easy-to-use algorithm can now be used to determine the risk of being infected by SARS-CoV-2 via aerosol particles from patients in indoor environments. It also estimates how protective measures ...