Antibody Defense Against Covid Wanes Over Time, Study Suggests
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Antibody responses to the coronavirus may diminish over time, according to a study that showed the natural defenses waning in Britons who’d previously been exposed.
Among 365,000 randomly selected U.K. adults who tested themselves at home, 4.4% had antibodies in September, compared with 6% in June, according to research published Tuesday by Imperial College London and polling service Ipsos MORI.