Overall, the adjusted seroprevalence (95% CI) was 93.51% (92.89–94.11%) at baseline and 93.92% (93.30–94.50%), 94.58% (93.98–95.16%), and 94.24% (93.60–94.79%) at three follow-ups, with a slightly increasing trend.
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SARS-CoV-2 seroprevalence and antibody trajectories after easing of COVID-19 restrictions: a longitudinal study in China.
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