‘We can’t let out guard down yet on social distancing,’ doctor says

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In the wake of the highest single day of new coronavirus cases yet worldwide, most in the U.S., NBC News medical correspondent Dr. John Torres tells TODAY that images of in-person graduation ceremonies are concerning because they show that “people are not taking this as seriously as they should.” He also comments on a new study from Columbia University that says that if social distancing in the U.S. had begun two weeks earlier, 36,000 lives could have been saved.