Experts recommend the use of the masks due to the spread of the delta variant among the unvaccinated.
Some counties, like Los Angeles, have reinstated the mandatory use of indoor masks.
Here we tell you all the details of this new measure.
The use of masks returns in several counties in the United States | Video | CNN
2021-07-22T21:21:25.797Z
Experts recommend the use of the masks due to the spread of the delta variant among the unvaccinated. Some counties, like Los Angeles, | United States | CNN