Yes, if you are sick, you should not go out and avoid other people as much as possible, but when you do have to go out to where other people inhabit, you should

Yes, if you are sick, you should not go out and avoid other people as much as possible, but when you do have to go out to where other people inhabit, you should wear a mask, and the CDC says as much. A lot of the transmission of this disease is between family members. With masks, this sort of transmission could be slowed or prevented.