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Why wear a mask after vaccination?
For individuals, the protective effect of vaccination is not 100%, and it takes some time to produce protective antibodies;
For groups, without the formation of immune barriers, COVID-19 is still easy to spread.
For the virus, COVID-19 is still mutating, and the effectiveness of the vaccine is decreasing.
Therefore, at this stage, people should still wear masks after vaccination.
For groups, without the formation of immune barriers, COVID-19 is still easy to spread.
For the virus, COVID-19 is still mutating, and the effectiveness of the vaccine is decreasing.
Therefore, at this stage, people should still wear masks after vaccination.
