Since the outbreak of the new coronavirus, the progress of the treatment of the new coronary pneumonia has touched the hearts of people all over the country. As soon as a drug is found to be helpful in the treatment of the new coronary pneumonia, it immediately hits the top of the major platforms and becomes the focus of everyone’s attention, for example, Shuang Huanglian, which was previously thought to have a suppressive effect, was snapped up the next day. In addition to these treatment or suppression drugs, the development of the new crown pneumonia vaccine is also a matter on everyone’s mind, because with the vaccine, we do not have to worry about being infected, even if the virus has not completely disappeared can be assured to go out. But not long ago, the World Health Organization said that it would take 18 months for a vaccine for the new coronavirus to be developed. To us, such a development speed seems too far away, can’t we develop a vaccine faster? Of course we all want a vaccine to be developed soon, but there is really no hurry. To understand how vaccines are developed, we must first understand them. The principle of vaccines against disease is to use pathogenic bacteria to stimulate the immune system, so that it produces certain protective substances, when they encounter the pathogenic bacteria again, the immune system will directly use the original immune memory to stop the pathogenic bacteria, the image is: dramatic. For example, if there is a new scam, because you know nothing about it before eh have, and your own lack of awareness of fraud, coupled with this scam is relatively sophisticated, so at the beginning it is likely to be fooled, until the time of loss to react to stop in time, but also on the alert for this scam, the next encounter will not be so easily cheated. But if someone tells you about this scam before you encounter it, then when you encounter this scam you can also react quickly and not be so easily fooled. In this, the deception is equivalent to a virus, the awareness of deception is equivalent to immunity, and the person who penetrates the deception is equivalent to a vaccine, except that the vaccine is penetrated in a way that first deceives you once, so that your immune system “remember”, but after the treatment of “deception”, the health effects are not significant. When making a vaccine, researchers have to first attenuate and inactivate the viruses so that they are not harmful to humans before they can be used in humans to stimulate the immune system to actually produce antibodies. However, this process is complicated, requiring continuous breeding, selection, processing, and after the completion of the production of animal experiments and human clinical trials, and only after confirming the safety and effectiveness of the approval of the market, the whole process may take as long as 10 years, so that 18 months to develop a vaccine has been considered very fast. Another issue to be aware of is that vaccines may also have side effects. Vaccines work by using pathogenic bacteria to stimulate the immune system to produce antibodies, requiring an immune response from the body, and those who are less fit may experience side effects or other complications that may make them unsuitable for vaccination. So, whether it’s a hard virus or vaccination prevention requires good health, those who are chronically obese, diabetics and other people with underlying diseases should hurry to adjust to adjust, in the case of physical conditions, to lose weight early, stabilize blood sugar, so that the body returns to a healthy state, so that we can do not be afraid of the virus.