FO: Dr. Marc Siegel: J& J vaccine decreases hospitalization, death by 100 percent ((foxfriendsfirst___)) ((lubuntu at wor2 1TXN))

="//video.foxnews.com/v/6236313700001">Dr. Marc Siegel: J&J vaccine decreases hospitalization, death by 100 percent

Fox News medical contributor Dr. Marc Siegel with insight on the single-dose Johnson & Johnson coronavirus vaccine