The novel coronavirus (COVID-19) epidemic has swept the world, and it has continued from the beginning of 2020 to the present, which not only allows people to implement personal hygiene protection, but also deeply experience the importance of "public health".
However, although the company banner design cleaning methods such as alcohol disinfection or frequent hand washing, which are well-known to the general public, have a certain degree of epidemic prevention effect, they still cannot be completely sterilized. Is the COVID-19 virus difficult to prevent? The two transmission routes of "droplets" or "aerosols" are the key culprits Dr. Zhu Jiming, a professor at the Department of Public Health of the National Defense Medical College, said that the key to the difficulty of preventing the COVID-19 virus is that it spreads through two ways: "droplet infection" and "aerosol infection", which is more difficult than the commonly known "contact transmission". "It's more difficult to break the chain of transmission.
The spread of the COVID-19 virus can be as far as 2-10 meters, and it can continue to be suspended in the air for tens of minutes to hours. Wide spread, long survival time, and maintaining a certain activity are the keys for the COVID-19 virus to cause a global pandemic in a short period of time.