According to a Chinese source, some netizen took photos of Andy Lau (劉德華) having a location shooting in Shenzhen. At the time, he was suspected to be wearing a doctor robe with jacket and face mask. After completing 14 days of quarantine period, Andy begun to film a movie related to virus with Qin Hailu (秦海璐), Liu Tao (劉濤) and other Chinese artistes.

Source: https://ol.mingpao.com/ldy/showbiz/latest/20201123/1606129113009/%e7%b6%93%e9%81%8e14%e5%a4%a9%e9%9a%94%e9%9b%a2%e5%be%8c-%e5%8a%89%e5%be%b7%e8%8f%af%e6%b7%b1%e5%9c%b3%e9%96%8b%e5%b7%a5-%e6%88%b4%e5%8f%a3%e7%bd%a9%e6%8b%8d%e6%8a%97%e7%96%ab%e9%9b%bb%e5%bd%b1