looking for white feather
The results of the WHO study show that the immune protection formed by being infected with the new crown and vaccinated can last for one year. That is to say, in fact, once infected with the new crown, the effect is somewhat equivalent to a booster shot. Still have to fight, after the fight, the validity period of the antibody can be extended. But whether it can last for a year, everyone may have doubts, because from the examples of many foreign friends around me, after they have been vaccinated and re-infected, some of them can persist for a year, but there are also others. Many people are re-infected after half a year, so the effectiveness of antibodies may not be generalized, and it still depends on themselves and the surrounding area.
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