NIH Director warns against 'premature' conclusion that omicron will be mild

NIH Director warns against ‘premature’ conclusion that omicron will be mild

Dr. Francis Collins explains why it will take two weeks to know how serious the omicron variant will be. #FoxNews Subscribe to Fox News! https://bit.ly/2vaBUvAS Watch more Fox News Video: http://video.foxnews.com Watch Fox News Channel Live: http://www.foxnewsgo.com/ FOX News Channel…