Situation or scenario where a mask should be worn
1. During the period when novel coronavirus antigen or Nucleic acid test is positive. 2. During the period of fever, sore throat, cough, runny nose, muscle ache...
1. During the period when novel coronavirus antigen or Nucleic acid test is positive. 2. During the period of fever, sore throat, cough, runny nose, muscle ache...
All provinces, autonomous regions, municipalities directly under the Central Government and the Xinjiang Production and Construction Corps joint prevention and ...
How to wear a mask correctly Patients with underlying respiratory diseases should use protective masks under the guidance of a doctor. Cotton gauze masks, spong...