Although there is a vaccine now, and most people have been vaccinated successfully, the virus is still changing and spreading faster. People hope that the infectivity of the virus can be reduced, but judging from the development trend of the virus in the last two years, the sustained development of this virus will become a common event. From the perspective of big data, some foreign people have achieved group immunity one after another, but they have also paid a great price, and the background of group immunity is different.
In this regard, Wu Fan said that the current prevention and control measures should be considered according to time, situation and place. At present, the mutated virus spreads faster, which is a severe test for the prevention and control of big cities and small villages. Therefore, epidemic prevention and control is national. As long as one place is ignored, the whole epidemic prevention and control will be controlled. At the same time, COVID-19's vaccines and drugs need to be considered and weighed.
In addition, the problems involved in the field of public health also need all-round and multi-dimensional consideration. Drugs and vaccines solve patients' ailments, and public health involves many aspects. Therefore, it is necessary to take dynamic zero clearing as a strategic goal, and tactically it needs to be considered according to time, place and situation. Only after consideration can we solve some problems above the epidemic situation and better control the epidemic situation.