Updated Covid-19 vaccines boost protection, but may not beat original formula against BA.4 and BA.5, early studies suggest
First on CNN: Most people feel socially connected as Covid-19 precautions ease, but many still need support, survey finds
GOP candidates seize on decision about Covid-19 vaccines for children as a rallying cry for parental rights
'Boris Johnson had Covid parties that were longer than that.' Trevor Noah reacts to Liz Truss resigning
First on CNN: More Americans are getting their booster shots, but 'it's not enough,' Biden administration warns
Math and reading scores of 4th- and 8th-graders dropped during pandemic, report says. Math declines were the largest ever
Poor mental health in US teens exacerbated by negative experiences during Covid-19 pandemic, survey finds
Scientists are searching for solutions after studies show pulse oximeters don't work as well for people of color
CDC ends recommendations for social distancing and quarantine for Covid-19 control, no longer recommends test-to-stay in schools
