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A technique that zaps airborne viruses with a narrow-wavelength band of UV light shows promise for curtailing the person-to-person spread of COVID-19 in indoor public places.

About 15% of pregnant women admitted to two maternity wards in northern Manhattan in late March and early April were already infected with the new coronavirus; the vast majority had no symptoms.

Unlike artificial sweeteners, real sugar sends signals to the brain when it enters the gut, a new study by Columbia neuroscientists has found.

The brainchild of Vibhu Krishna, a medical student at Columbia’s Vagelos College of Physicians and Surgeons, "Faces of the Frontline," shares stories on Instagram from the COVID-19 front line.