There are still some taboos about COVID-19 vaccine in COVID-19 vaccination regulations, especially in the age range, but these taboos are only temporarily believed to be lifted soon. At this stage, the target population of COVID-19 vaccine can be healthy adults aged 18-59. The vaccine needs two injections, with an interval of 28 days, and at least an interval of 14 days in an emergency. Colleagues with severe chronic diseases and allergies cannot be vaccinated with COVID-19 vaccine, and pregnant women, patients with low platelet count and people with impaired immune system cannot be vaccinated with COVID-19 vaccine. Vaccination in COVID-19 is muscle registration. The skin at the inoculation site needs to be kept clean and dry. You can't get a vaccine for a cold and fever. After vaccination, you need to leave after half an hour of on-site observation to avoid allergic reactions. Without medical staff, there will be danger.
What is a vaccine? Vaccine refers to biological products made of various pathogenic microorganisms for inoculation, which is the most economical and effective means to prevent and control infectious diseases. The working principle of vaccine is to artificially attenuate, inactivate or genetically modify other metabolites of pathogenic microorganisms such as bacteria and viruses, so as to retain the immune characteristics of pathogenic bacteria and take active immune preparations to prevent infectious diseases. When people get rid of these harmless pathogens, the human immune system will produce a protective substance, so when people come into contact with pathogens again, the human immune system will make more protective substances according to the original memory to prevent pathogens from harming people. COVID-19 vaccine is also based on this principle, which makes the human immune system produce anti-COVID-19 antibodies first, so that when they meet again, they will form more protective tissues against COVID-19.
The reason why special people can't be vaccinated is because vaccination is not absolutely safe. After all, the vaccine injected into the human body is also a virus. After vaccination, there will be various adverse reactions, usually nausea, dizziness, vomiting and even allergies after the meeting, which is also based on everyone's different physique. Before vaccination, the doctor will ask some questions, such as allergies, pregnant women, breastfeeding and so on. These are all to ensure the safety of vaccinators, because vaccination of special people will lead to other latent diseases.