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"infection" tag

COVID: When and where is the infection risk high?

We’ve all heard it: You’re more likely to catch COVID indoors than outdoors. But once you’re inside, there are different factors that determine the risk level. And you shouldn’t throw caution to the wind outside...

German researchers are working on a tissue that will tell you whether you’ve got the flu

You blow your nose in a tissue and the tissue indicates you’ve got the flu. Sounds like science fiction? Stuff like this always does. But German researchers are designing a “lab in a hankie.” It’s...