Can the second injection of COVID-19 vaccine be dispensed with?

The second injection of COVID-19 vaccine is 2-4 weeks apart. It is no problem to delay the vaccination for several days, but it is not allowed to dispense with the second injection after only one injection, otherwise the positive rate of antibodies in the body and the sustainable effect of one injection of COVID-19 vaccine are low, and the risk of infection is still high. However, after two injections, the positive rate of antibodies in the body can increase, and the duration will be longer. Therefore, COVID-19 vaccine still needs to continue to be injected after 28 days. Generally speaking, a single injection of COVID-19 vaccine can also play an antibody role, but the antibody positive rate in the body can only reach about 60-90%, which is less protective for the body, while two injections can make the antibody positive rate in the body reach more than 90%, which will play a stronger protective role for the body. However, it should be noted that vaccines cannot achieve a 100% protective effect, and some individuals may not even form antibodies after vaccination and may still be infected. Therefore, even if vaccinated, personal protection is still necessary.
Is a shot of COVID-19 vaccine effective?
One shot of novel coronavirus vaccine is also effective, and it can also make the body produce enough antibodies to resist novel coronavirus, but the effect of these two shots will certainly be better, because when the second shot is inoculated, the body may achieve the role of immune enhancement. At this time, more antibodies will be produced, and the resistance to novel coronavirus will be stronger. So we still recommend getting two doses of vaccination in general. In China, people can be vaccinated with novel coronavirus vaccine for free. The novel coronavirus vaccine is very effective for those high-risk groups, such as medical staff, or other people with weak physical resistance. Therefore, if the population is at high risk, vaccination can be carried out to avoid self infection with novel coronavirus.
Can we vaccinate two doses of COVID-19 vaccine at the same time. Yang Xiaoming, Chairman of Sinopharm Group China Biotech: Now COVID-19 Vaccine is designed to give two injections with an interval of three to four weeks according to the clinical and pre clinical animal experiments in Phase I, Phase II and Phase III. After receiving two injections, the antibody conversion rate was 100% within 14 days, which means it can achieve a protective effect. The vaccination procedure is obtained through rigorous scientific design experiments, and it cannot be said that it can be closed at will. If you want to get two or three injections, you can get two or three injections. It has strict scientific evidence.

How long does the COVID-19 vaccine take effect
28 days after the two doses of vaccine. If two doses of COVID-19 vaccine are inoculated according to the standard immunization procedure, most people will be able to produce high titer antibodies sufficient to resist COVID-19 after 28 days of vaccination. However, it should be noted that up to now, all vaccines have failed to achieve 100% protective effect. A few people still fail to produce protective effect after COVID-19 vaccination, or are still infected with viruses, which has a great relationship with the individual constitution of the recipient and the characteristics of the vaccine itself.

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