What three kinds of defenses does COVID-19 refer to?

COVID-19's three defenses refer to civil air defense, technical defense and weapon defense.

Three-prevention measures are protective measures against nuclear, chemical and biological weapons attacks.

1. Leak-proof: front-line personnel are tested for nucleic acid once every two days and twice a week.

2. Import prevention: Unless it is necessary or urgent, entry and exit documents will not be issued for the time being.

3. Non-proliferation: Imported cold-chain food that cannot be supplied shall not be transported.

It is recommended that the public do a good job in personal protection from the following three aspects:

First, do a good job of physical protection. We must do three prescribed actions-"wear a mask, wash your hands frequently and keep a social distance", especially in key public places with dense people, close contact and closed space.

For example, supermarkets, restaurants, hotels, schools and child care institutions, old-age care institutions, medical institutions, small and poorly ventilated bathrooms, elevators, etc., must wear masks. If there is abnormal or unclean hand contact, wash your hands frequently and keep a "one-meter line" between people.

The second is to improve the level of physical defense. Vaccination with COVID-19 vaccine is very important for improving individual immunity, establishing group immune barrier, resisting COVID-19 infection and reducing the severity of COVID-19. Others include exercising more, drinking more water, taking more rest, strengthening the body and increasing the body's ability to resist diseases.

The third is to improve the ability of psychological prevention. To prevent and control the epidemic, we should sound the alarm, not relax, not careless, and maintain moderate tension, but there is no need to panic. We should have a correct understanding of COVID-19, guard against the epidemic scientifically and accurately, don't believe in rumors, don't spread rumors, and keep a rational and peaceful mind.

Pay more attention to the authoritative information released by the government and public media, accurately understand the epidemic situation, grasp the prevention and control trends in time, arrange daily life reasonably, and adjust traffic and travel in time. We should consciously abide by the provisions of joint prevention and control, obey the management of joint prevention and control, and actively cooperate with community registration, going out for filing, access control, temporary closed control, nucleic acid detection, home health observation and other work.