Even though the lockdown has already been lifted in China and everything is going back to normal over there, it doesn't mean they cannot remain vigilant. They're still practicing social distancing. They still have to wear a mask wherever they go outside. Also their body temperatures are still being checked whenever they enter a public space. In addition, they have to show an app on their phone that shows that they're negative from Coronavirus. If it shows positive, they're immediately taken to a quarantine area. I asked some friends back there about this.

https://www.scmp.com/news/china/society/article/3081745/coronavirus-chinese-school-gives-pupils-hat-tip-teach-them-how?utm_content=article&utm_medium=Social&utm_source=Facebook#Echobox=1587986161