The new scheme of booster is coming. What is homologous immunization? What is sequential immunization?

Using the same technical line vaccine for booster vaccination is homologous booster vaccination, that is to say, the booster needle you injected belongs to the same manufacturer as the two vaccines previously vaccinated. Sequential immunization refers to vaccination with different technical routes in order to improve the preventive effect. To put it simply, your booster shot is not from the same manufacturer as your previous vaccine, but the effect is better. You can choose the strengthening needle you want to play according to your physique and your city.

Why do you need to strengthen the injection?

Because the virus is constantly mutating, the effect of the previous vaccine is slowly weakening, so it is necessary to get a booster shot, so as to form immunity and prevent the body from being eroded by the virus. In fact, the protection period of the vaccine is not particularly long, so strengthening the needle is to extend the protection period and make the human body healthier. However, after strengthening the injection, people should also take corresponding epidemic prevention measures, and they can't appear in the crowd without wearing a mask and doing any epidemic prevention. After all, management is not without omissions. You may meet an asymptomatic infected person, and then you get caught.

What's the difference between these two kinds of lengthening needles?

The difference lies in whether the manufacturers of strengthening needles are different from those of the first two needles. After all, there are many manufacturers of fortified vaccines in China, and the vaccines produced by each manufacturer are a little different. If you have been vaccinated with a vaccine from a manufacturer before, you can conveniently carry out the third booster immunization for homologous booster immunization. If the injections are different, it is to continue to strengthen immunization in order, and the immune effect is better.

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If you haven't been vaccinated with the booster vaccine, you can go to the relevant departments for vaccination, which can protect your body. However, the inoculation time of the booster needle must be six months apart from the second needle, and the time should not be too short, otherwise the body can't bear it. People who are vaccinated must be over 18 years old, otherwise they cannot be vaccinated.