Pediatric humoral immune responses and infection risk after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and two-dose vaccination during SARS-CoV-2 omicron BA.5 and BN.1 variants predominance in South Korea.

Front Immunol · 2023 · PMC10773891 · PMID 38193075

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a decreasing trendno p-value reported

However, in this study, we found that the temporal trend of the median anti-N IgG titer after SARS-CoV-2 infection exhibited a decreasing trend after 6 months but persisted for more than 11 months ( Figure 3A ), and a sizeable proportion of children in South Korea were infected after January 2022 during the Omicron wave.

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