vaccine January 4, 2022 1:03 pm CDC Shortens Waiting Period for Pfizer Booster The Centers for Disease Control and Prevention updated guidelines for Pfizer COVID-19 boosters, shortening the time from second dose to booster to five months. US & World Videos 1:43 How to tell if it's COVID, flu or fall allergies and what to do 1:59 New COVID-19 vaccines, free tests available as cases rise 1:31 CDC recommends updated Covid shot for everyone ages 6 months and up 1:33 People weigh updated COVID-19 boosters as FDA potential approval nears 2:26 COVID-19 Public Health Emergency Ends in Connecticut
