Total CD8+ T-cells ( p = 0.004) and CD8+ naïve T-cells CCR7+CD45RA+ ( p = 0.01) were significantly higher in previously infected individuals, while CD8+ central memory T-cells CCR7+CD45RA- ( p = 07) and CD8+ effector memory T-cells CCR7-CD45RA- ( p = 0.58) showed an increasing trend at day 28.
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Immunological memory and neutralizing activity to a single dose of COVID-19 vaccine in previously infected individuals.
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