CNN  — 

The US Centers for Disease Control and Prevention announced that people fully vaccinated against Covid-19 do not need to wear masks or practice physical distancing in virtually all indoor and outdoor settings.

This was an abrupt shift from the CDC’s previous guidance, which had detailed color-coded pictures that many criticized as being too confusing and too strict. Previously, vaccinated people were urged to wear masks in some outdoor settings such as crowded get-togethers and most indoor settings, such as worship service, the gym and restaurants.

Now, people who are fully vaccinated don’t need to wear masks in these settings, though they still are required to on buses, trains and planes and in hospitals. Unvaccinated people and those with a weakened immune system should still wear masks, the CDC says.