I think they knock on a window. If someone answers, they just come back a few days later.
My coworker is from Wuhan. Her family is still there.
She called in sick on Thursday. Probably flu.
:O
You're saying what I'm thinking 😢
according to AlJazerra report, in Wuhan, the only once every 7 days rule, has now been changed to don’t come out at all:
https://www.youtube.com/watch?v=9kcw82BMl10