@livinginchina wrote: "Because the Health code （行程卡) Had an * with other information regarding Guangzhou virus outbreak."
To avoid confusion for others. 行程卡 is for movement tracking with up green arrow logo. I believe that app/mini program in WeChat would show * asterisk symbol for cities of medium to high risk within 14-days of visit.
You should be grateful they didn't keep you two in hotel quarantine where you'd have to dole out 300rmb/day.