Elicitation of neutralizing antibodies and IgG4 subclass switching following booster vaccination with ancestral COVID-19 mRNA vaccines does not reduce breakthrough infections.

Hum Vaccin Immunother · 2025 · PMC12355716 · PMID 40812315

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did not reach statistical significanceno p-value reported

However, these differences did not reach statistical significance at any given time point.

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