President-elect Joe Biden received his first COVID-19 vaccine dose Monday. Biden, 78, touted the vaccine as safe while wearing two overlapping protective face masks to his appointment at ChristianaCare Hospital in Newark, Delaware. The president-elect received the Pfizer-BioNTech vaccine, which requires a second dose in 21 days. A second vaccine made by Moderna won regulatory approval last week. Tabe Masa, a nurse practitioner, administered Biden’s shot. The New York Post is your source for breaking news, news about New York, sports, business, entertainment, opinion, real estate, culture, fashion, and more. Catch the latest news here: https://nypost.com/ Follow The New York Post on: Twitter - https://twitter.com/nypost Facebook - https://www.facebook.com/NYPost