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US intelligence report assesses COVID-19 origins
By James Kingsland
Waning Immunity Is Not a Crisis, Right Now
By Katherine J. Wu
SARS-CoV-2 mRNA vaccines induce persistent human germinal centre responses
By Jackson S Turner, Fatima Amanat & Xuping Xie
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South African health experts have identified a new lineage of SARS-CoV-2: what's known so far
By Wolfgang Preiser, Tulio de Oliveira & Jinal Bhiman
Does SARS-CoV-2 natural infection immunity better protect against the Delta variant than vaccination?
By Jocelyn Solis-moreira
How Long Does Immunity To COVID-19 Last? : Goats and Soda
By Michaeleen Doucleff
How long does immunity last after COVID vaccination? Do we need booster shots? 2 immunology experts explain
By Jack Feehan & Vasso Apostolopoulos