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Face Mask Can Test Your Breath for COVID-19 in 90 Minutes

Researchers at Harvard and MIT pioneered a biosensor that can test for COVID-19. Wearers breathe into their masks for 15 to 30 minutes, press a button on the sensor, and within 90 more minutes, their COVID test results show up on a readout strip similar to a pregnancy test. The invention is described in greater detail in the journal Nature Biotechnology.