Hybrid immunity.

A recent report of 63 patients with previous SARS-CoV-2 reveals that plasma antibodies maintain neutralizing activity against the wild-type virus even at 12 months, but with notably less protection against variants, while those who received one dose of a mRNA vaccine achieve 50x the neutralizing activity, including higher activity against variants than previously-infected unvaccinated folks have against the wildtype. Virus and more than previously-uninfected vaccinated folks have after two doses. | Wang, Nature 2021


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