Prevention in public places: (1) Staff in public places should monitor their own health, and should not go to work with illness if suspicious symptoms of novel coronavirus infection (including fever, cough, sore throat, chest tightness, difficulty in breathing, mild nausea, weakness, slightly poor mental health, nausea and vomiting, diarrhea, headache, panic, conjunctivitis, mild muscle pain in the limbs or lower back, etc.) appear. (2) If suspicious symptoms of novel coronavirus infection are detected, staff should ask them to leave. (3) Public items and public contact items or parts should be cleaned and disinfected regularly. (4) Maintain air circulation in public places. Ensure that the air conditioning system or exhaust fan is functioning properly, clean the air conditioning filters regularly, and strengthen the ventilation of windows. (5) Restrooms should be equipped with sufficient hand sanitizer, to ensure that water taps and other water supply facilities work properly. (6) Keep the environment clean and clear garbage in a timely manner. (7) In areas where the disease is endemic, the public should minimize visits to public places, especially to places with a high concentration of people and poor air circulation.