Though carrying almost no obvious symptoms, my body told me that I was a positive infected through antigen test once every day.  After having taken herb medicine for six days, finally I got a negative result yesterday.  But this morning, the test device popped out two red lines, so I was a positive infected, again. 

Some experts now called the epidemic a "COVID flu", implying that it has become more contagious but less mortal.  Maybe it is good news.  Still, we must watch our personal hygiene, and government must be well-prepared on the supplies of medication and on medical services.