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Vaccine will be effective against new strain of COVID-19, doctor says

04:25

NBC News medical contributor Dr. Vin Gupta tells TODAY that despite ongoing distribution of COVID-19 vaccine, “it’s still going to be an uphill climb” until early spring and warns “we still need people to keep their guard up.” He says that the vaccine “will be effective against the new strain” of mutated COVID-19 being reported in Europe.