Vaccine mandates are set to roll out in these cities

Vaccine mandates are set to roll out in these cities

Fox News medical contributor Dr. Marc Siegel discusses the importance of ‘hybrid immunity,’ which is a combination of natural immunity and at least one COVID-19 vaccine. #FoxNews Subscribe to Fox News! https://bit.ly/2vaBUvAS Watch more Fox News Video: http://video.foxnews.com Watch Fox…