Donald Trump December 21, 2021 7:08 am Trump Booed For Revealing He Got COVID-19 Booster Shot Former president Donald Trump says he received a booster shot of the COVID-19 vaccine, drawing boos from a crowd in Dallas US & World Videos 2:19 San Francisco barbershop struggles to stay open after pandemic 0:51 Alameda County using dogs to detect COVID 3:57 Interview: Doctor's perspective on COVID 4 years after shutdown started 2:27 Marking 4 years since COVID-19 shut down the Bay Area 2:09 CDC updates COVID isolation guidelines