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Epi Hub

WHO/CDC standard tools for epidemiological analysis & surveillance

Vaccine Effectiveness

Screening Method and Test-Negative Design - Rapid VE estimation

Aggregate Data Input

Odds Ratio

0.444

Vaccine Effectiveness

55.6%

VE = 1 - OR | OR = (PCV / (1 - PCV)) x ((1 - PPV) / PPV)

Recommendations

VE = 55.6%

Caution

Moderate effectiveness detected. Monitor for waning immunity or strain mismatch.