Sinopharm's COVID booster reverses antibody decline, enhances cell-based responses - study
The Peninsula
BEIJING - A third shot of Sinopharm's COVID-19 vaccine leads to a rebound in antibody levels that drop months after a second dose, a small-scale Chinese study showed.
It also showed the booster enhanced cell-based responses to the coronavirus.
The findings yet to undergo peer review, come as China starts to give a third COVID-19 shot to higher risk members of the population, as concerns grow that waning antibody levels over time could weaken protection against the virus.
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