What is group immunity? Is it possible to achieve mass immunization in COVID-19?

Group immunity means that when a virus infects a group, most people in this group get antibodies against the virus, which then produces group immunity effect. Some individuals who are not immune to this virus are protected because most people have acquired antibodies. Because most people have antibodies to this virus, the transmission chain of infection is interrupted. The more people have antibodies to this virus, the higher the proportion in the total population of this group, and the more easily infected individuals are protected, which is called group immunity.

In 2020, COVID-19 virus broke out in Wuhan, China, and gradually swept the world. At present, due to China's excellent socialist system and the correct command of leaders, the COVID-19 epidemic has been effectively controlled in China. However, in some other countries, when faced with the experience of China given by China, their leaders and government agencies were still misleading, which led to the worsening of the COVID-19 epidemic and the soaring number of infected people. Even some inactive governments have euphemistically announced that they will realize group immunity and give up resisting the invasion of COVID-19 virus when facing their own nationals.

So is it possible to achieve mass immunization in COVID-19? COVID-19 virus is a coronavirus, but it is difficult to achieve group immunity. First of all, because its transmission route is droplet transmission, it can even spread in the air, and its transmission chain is not easy to be interrupted. Secondly, the virus has strong variability, because its genetic information is single-stranded DNA, its structure is not stable enough, it is easy to mutate, and it is difficult to control and evolve into a new virus. Therefore, even if we want to achieve group immunity against COVID-19 virus, we should actively develop vaccines to prevent COVID-19 virus. Only when everyone has been vaccinated with COVID-19 vaccine can we not be afraid of this virus and realize group immunity. Therefore, in the face of COVID-19 patients, we should actively treat them, implement compulsory isolation measures, put an end to contact with the source of infection, and keep a safe social distance.