Both vaccination and prior infection help protect against new Covid-19 infections, but vaccination protects against hospitalization significantly more than natural immunity from prior infection alone, according to a study published Wednesday by the US Centers for Disease Control and Prevention.
President Joe Biden is scheduled to hold a formal news conference on Wednesday from the White House as he marks the end of his first full year in office.
Sen. Mark Kelly, a Democrat facing reelection in Arizona, announced he will back a rules change to pass voting rights legislation, revealing a schism with his fellow Arizonan, Democratic Sen. Kyrsten Sinema, who has remained steadfast in her opposition to such a change.
