At present, the epidemic situation is still very serious. In some places, in order to ensure the safety of other colleagues, and to facilitate the investigation of who may be positive, it is very reasonable to sign a letter of commitment that you have never been to an epidemic-prone area.
As citizens, we should actively cooperate with the policies issued by the state, especially those related to the epidemic, which is related to the safety of all mankind. We must actively cooperate with epidemic prevention.