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... take place among vaccinated. This happens due to a decrease in immunity and a rapid weakening of the effect of vaccines. It is noted that the effect of vaccination fades away faster in people over 70 years old, as well as in people with concomitant diseases. Hopkins emphasized that the vaccine can protect a conditionally healthy 30-year-old person from disease for a long time. However, citizens from risk groups need not to delay and undergo revaccination after six months. The British authorities ...
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