Name: U.S. Surgeon General explains how to reduce breakthrough infections
Uploaded: Tue Jul 20 2021 03:33:32 GMT+0000 (UTC)
Duration: 7 min 12 s
Description: U.S. Surgeon General Dr. Vivek Murthy tells Lawrence O'Donnell that some fully-vaccinated people may still want to wear a mask in certain situations to reduce the risk of getting infected with Covid-19 and putting unvaccinated children at risk.

July 20, 202107:12