coronavirus February 4, 2021 7:38 pm Mixing Vaccines? New Study Could Make Second Doses Easier to Find As many who’ve had their first COVID-19 vaccination prepare for their second shot, a new study underway in the U.K. could make getting that dose much easier. 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