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In summary, Goel I et al i .1 demonstrate the common evolution of B and T cell memory in COVID-19 convalescents and FNI, suggesting most of the benefit of tertiary boosting will come in the form of higher antibody amounts. In a new study, a group evaluate immune responses against SARS-CoV-2 in vaccinated individuals and find evidence of durable immune memory for at least 6 months, irrespective of former infection. (Top) Naive individuals receiving two doses of an mRNA vaccine generate a diverse somatically mutated circulating memory B cell population of a similar size to COVID-19 convalescents (Bottom) by 6 months post double-dose vaccination. [Extracted from the article]