The epidemic in COVID-19 began in February 20 19. Today is February 6, 2022, which is three years. The epidemic has only been three years, and it should be over. It has been said before that COVID-19 will be regarded as a common cold in the future, and it will be very common.

If we don't let go, the people will not be able to eat, and the pressure on the national economy will be too great. For three years, the sky has been gray, and it's time for Wan Li to be clear.

Transmission routing

Health and epidemic prevention experts stressed that the main transmission routes in COVID-19 can be identified as direct transmission, aerosol transmission and contact transmission. Direct transmission refers to the infection caused by sneezing, coughing, talking droplets, and direct inhalation of exhaled gas at close range; Aerosol transmission refers to the mixing of fog droplets in the air to form aerosol, which leads to infection after inhalation; Contact transmission means that droplets are deposited on the surface of articles, and then contact with mucous membranes such as mouth, nose and eyes after contacting with contaminated hands, resulting in infection.

Refer to the above content: Baidu Encyclopedia-novel coronavirus