The former FDA commissioner says the number of infections remains high heading into the fall and winter. casesCBSCoronavirusCOVID-19COVID19dangerousEpidemicface the nationFallformer fda commissionerGottliebimmune systemIMMUNITYInfectionsmargaret brennannewsoutbreakpandemicpoliticsquotveryRisescott gottliebSeasonquotspreadU.S.videoVIRUSVITAMINvitamin CoronavirusvlogwarnsWinterYouTube