So, in late October, my brother's school moved to online learning for 2 weeks because of a combined chickenpox + pneumonia outbreak.
Will this happen again?
If there are multiple outbreaks, resolves YES as long as one of them is pneumonia.
@chrisjbillington People have been getting fevers lately. In the past few days, my brother got influenza, and he had to go to hospital for a few days, had a bad fever, it's fine now, but in the scans, his brain was infected, he just came back today and the doctor said he shouldn't do any work for 2 weeks and to check on him later. My mom stayed with him and also got a little sick.
My brother's school will start moving to online learning tomorrow (Chinese schools don't do Christmas holidays), for the rest of this week.