Sure, you don't have to wear a mask on airplanes, buses and ride shares anymore, but you still might want to depending on the circumstances. Here's what experts say about the risks.

A federal judge's decision to strike down the Centers for Disease Control and Prevention's mask mandate for travelers is only the latest in a series of challenges that seek to rein in the agency.

The mask-wearing requirement had been initially imposed in early 2021, shortly after President Joe Biden took office.

Many blame the agency's earlier guidance for suffering and even suicide risk among chronic pain patients. Critics say the updated advice may not fix the problem.

The Biden administration is moving to end sweeping pandemic border restrictions known as Title 42 on May 23. The controversial public health order was used to quickly expel migrants at the border.

Doctors and health researchers are looking to testing rates, case rates – and intuition – to determine when they'll feel comfortable mingling maskless indoors.

The federal health agency released new guidance for when Americans need to mask up indoors, saying about 70% of the population lives in a place where it's safe to go mask free.

The new recommendation for adolescents age 12-17 came hours after a panel of CDC advisers voted in favor of it. The boosters should be given five months after initial immunization.

Those who contracted COVID-19 can end their isolation after five days while continuing to wear a well-fitting mask for an additional five days, according to the agency.

Some workers are concerned about new guidance from the Centers for Disease Control and Prevention that shortens the isolation period for COVID-19 cases.

CDC Director Rochelle Walensky gave the green light to boosters just hours after a panel of vaccine advisors voted unanimously to recommend boosters for anyone 18 and older.

The Centers for Disease Control and Prevention reports that both infection-induced and vaccine-induced immunity are durable for at least six months — but that vaccines are more consistent in their protection and offer a huge boost in antibodies for people previously infected.

CDC Director Rochelle Walensky also endorsed a mix-and-match approach to boosters that would be flexible for patients and health care providers.

A salmonella outbreak has affected more than 30 states. Federal health officials link it to onions grown in Chihuahua, Mexico, and distributed by ProSource Inc.

The CDC says that having every person in attendance vaccinated is important for protecting those who can't get a shot. And it recommends that those who aren't fully vaccinated delay travel.