Does the receiver call or send a text message to inform himself?

Close contacts will call because they need to be transferred and may need to be isolated.

Close contacts should be informed by the disease control department to carry out medical observation at home as required, do not panic, go to work and go out casually, observe their physical condition and receive regular follow-up from community doctors. If you have fever, cough and other abnormal clinical manifestations, you should report to the local disease prevention and control institutions in time, and go to the designated medical institutions for investigation, diagnosis and treatment under their guidance.