Immunity to the coronavirus disappears within a few weeks, according to the results of a new study, dashing hopes that so-called “herd immunity” will drastically slow the spread of the disease, and throwing the efficacy of an eventual vaccine into doubt as well.
As The Guardian reported, a team of researchers at King’s College London looked at 90 patients who had developed coronavirus infections. Of those patients 60 percent had “potent” antibodies while in the midst of the infection. But of those patients, only 17 percent had that same level of potent antibodies just three months later.
Further, some patients had no detectable antibodies just three months after infection.
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