Shoppers who are vaccinated against Covid-19 can shop without masks in some Walmart, Sam's Club and Costco locations as well as at Trader Joe's, the companies said in separate announcements

Nevertheless, all three major indexes ended the week with losses. For the Nasdaq Composite, it was the fourth straight week of losses, its longest losing streak since August 2019.

The CDC's announcement that fully-vaccinated individuals don't need to wear a mask in most situations was a big step toward a return to normalcy, but it might have complicated employers' return-to-work plans

"Now that the vaccine has been successfully rolled out, states and private companies should think outside the box and help incentivize vaccinations while focusing on expanding access to all Americans," Ali Khan for @CNNOpinion 

On the morning of April 17, two brothers in Westchester, New York, woke up to learn that they had become millionaires overnight, thanks to an unlikely wager on a cryptocurrency that was originally created as a joke

Travel is a big exception for new mask guidance in the United States, and the transportation industry says it will continue to strictly enforce mask use

Disney's parks division, one of the company's foundations since the opening of Disneyland in 1955, is trying to rebound. The CDC's new mask guidance could have huge consequences for Disney's attendance numbers and the theme park industry as a whole.

China has successfully landed its rover on Mars, according to state media, becoming the second country in history to have a rover on the red planet