In our daily life, some viruses can enter the human body through mucous membranes only when they reach a threshold of very high order of magnitude, while viruses attached to clothes and skin in the form of aerosols are unlikely to cause diseases. Moreover, aerosol is charged, and the virus it carries is easily destroyed, so the survival rate is very low. ?
The two most typical ways that aerosols carry viruses are sneezing or coughing. In the process of sneezing and coughing, the epidermal cells in the respiratory tract of infected people can be ejected with saliva and sneezing, and these epidermal cells are also infected with the virus.
Most aerosol particles are very large, and most of them are above 50 microns, which can be blocked by ordinary masks. Therefore, wearing medical surgical masks can play a major role for us. Very small aerosol particles, that is, aerosol particles with a radius less than 0. 1 micron, generally drift with the wind, and the virus has a short survival time, so the possibility of being breathed by people is very, very small.
Therefore, when we go out, we should not only wear a mask, but also avoid touching eyes, nose and mouth when touching things, clothes and other places, so as to prevent aerosol particles falling on clothes and skin from being brought into our body mucosa by our hands. Wash your hands with tap water and soap when you get home. As long as you pay more attention, you can avoid spreading infection through aerosols, and hope that the epidemic will pass as soon as possible.