Incremental effectiveness of the second dose of mumps-containing vaccine among children 9 months to 6 years in Hefei: A matched case-control study.

Hum Vaccin Immunother · 2025 · PMC12452436 · PMID 40971344

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did not reach statistical significanceno p-value reported

However, due to reduced sample size in subgroup analysis, the IVE for intervals beyond 1 year after the first dose did not reach statistical significance.

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