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[Slashdot] - UK Study Finds Evidence of Waning Antibody Immunity To COVID-19 Over Time

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Antibodies against the novel coronavirus declined rapidly in the British population during the summer, a study found on Tuesday, suggesting protection after infection may not be long lasting and raising the prospect of waning immunity in the community. From a report: Scientists at Imperial College London have tracked antibody levels in the British population following the first wave of COVID-19 infections in March and April. Their study found that antibody prevalence fell by a quarter, from 6% of the population around the end of June to just 4.4% in September. That raises the prospect of decreasing population immunity ahead of a second wave of infections in recent weeks that has forced local lockdowns and restrictions. Although immunity to the novel coronavirus is a complex and murky area, and may be assisted by T cells, as well as B cells that can stimulate the quick production of antibodies following re-exposure to the virus, the researchers said the experience of other coronaviruses suggested immunity might not be enduring.

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