The US CDC = Centers for Disease Control and Prevention has published the first guidelines on how to wear masks for vaccinated people.
For those who have been vaccinated, the risk is low even if they gather indoors without a mask, but in public places it is necessary to wear a mask and secure a distance.
On the 8th, the CDC released its first guidelines on wearing masks and keeping distance for those who have completed vaccination.
According to it, vaccinated people are at low risk of gathering indoors without a mask.
Also, keeping in mind that elderly people will visit the homes of their children and grandchildren, even if the inoculated person meets a person who has not been inoculated, if the other person is a single household, they can visit without wearing a mask. I will.
On the other hand, when multiple households who have not been vaccinated gather or when interacting with people at high risk of serious illness, it is necessary to wear a mask and secure a distance in public places, so participation in large-scale events Should also be avoided.
Regarding this reason, CDC director Warensky said that even if the vaccination is completed, there is a slight possibility of infection, and there is a possibility that the infection will spread asymptomatically. Contact with people who do not have it should be judged carefully. "