Antigenic Characterization of H1N1 Influenza Viruses That Circulated During the 2019-2020 Season in Philadelphia, Pennsylvania.

Influenza Other Respir Viruses · 2025 · PMC12127215 · PMID 40452165

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did not reach statistical significanceno p-value reported

Antibody titers against each virus were slightly higher in sera from IBV‐infected individuals relative to IAV‐infected individuals, but this did not reach statistical significance using a logistic regression analysis (Figure 4A–D ).

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