No ifs

① Bacteria and viruses are pathogenic microorganisms, but their characteristics are very different. Bacteria may be small enough to be visible under a light microscope, but in addition to nucleic acids, the basic unit of life, they also have a large set of supporting facilities to survive. These include cell walls that act as residential "mansions," "warehouses" for storing nutrients, and "chemical workshops" for metabolizing. Rely on these. Fine grass can take in materials from the outside world and process them into energy. The virus, however, is much smaller and much more pitiful, and there is no "storehouse" or "workshop", not even a "thatched house" as a protective shell. It's actually one molecule in size and you can see it with an electron microscope. The whole house is just a nucleic acid that represents life. If people are compared, bacteria at least have a pair of pants, a begging bowl, and a stick to beat the dog. So while bacteria must thrive in a good environment inside the body, they can survive for a long time in a bad one. A virus, on the other hand, is like a newborn baby, with nothing but its life and a Suckling mouth, and no ability to survive on its own. Viruses can only live inside human or animal cells and survive by "stealing" readily available nutrients from the cells. Once out of the body, the virus doesn't live for more than a few hours. ③ Most antibiotics work on bacteria because they can inhibit cell reproduction and interfere with their formation of new genetic structures or cell walls. And because viruses can only live in other people's cells, they can't perform these biochemical reactions on their own. So antibiotics have no effect on viruses.

④ Since the survival ability of the virus is so weak, why is it so rampant? Ebola, for example, is highly contagious, with a case fatality rate of up to 80 percent. In fact, most viruses are far less scary, and some do not make people sick. Coronavirus does not have a strong ability to cause disease, the problem lies in the "variant". A mutated virus is not the same as the original, it may be harmless, but it can also become a more "lethal" virus. But we don't have to worry about it mutating to make it more lethal every time. Because as far as lethality is concerned, mutation is like gambling. There are always winners and losers, and the chances of winning over and over again are slim. At least it hasn't been recorded in history. If we had, we probably wouldn't be here now. ⑤ It must be pointed out that the size of the lethality not only depends on the virus, but more importantly, the immunity of the population. An important factor in the outbreak of mutant coronaviruses is that humans have not yet come into contact with the new virus. When enough people develop antibodies, the virus becomes much less of a threat to humans. Using scientific spirit and civic literacy to add weight to the victory of the epidemic is just like the SARS prevention and control war, the enemy of the novel coronavirus war, not only challenged the medical institutions, but also the entire community, even everyone's test. Sometimes, in emergencies such as disasters, public opinion is used to saying that "we are all human beings". But in terms of correlation, I am afraid that nothing can compare with the "human-to-human" epidemic of infectious diseases, which can make us more truly feel that "we are all epidemic prevention personnel". Academician Zhong Nanshan suggested, "No special circumstances, do not go to Wuhan". Such advice and prevention and control response require everyone's cooperation and will inevitably affect the convenience of many people more or less for a while and disrupt the original Spring Festival plan. Like some people originally agreed to classmates, relatives and friends gathering, may have to pay attention to the occasion and even cancel, and even some business activities are inevitably affected. It must be acknowledged that many prevention and control efforts, especially those related to control, monitoring and inspection, are aimed at reducing the convenience of the people and sacrificing the authorities