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vaccine efficacy

VE = (DU - DV)/DU x 100% = (1-RR) x 100% VE: vaccine efficacy DV: disease in vaccinated DU: disease in unvaccinated RR: relative risk

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vaccine

References

  1. Wikipedia: Vaccine efficacy https://en.wikipedia.org/wiki/Vaccine_efficacy
  2. Orenstein WA, Bernier RH, Dondero TJ et al Field evaluation of vaccine efficacy. Bull World Health Organ. 1985;63(6):1055-68. PMID: 3879673; PMCID: PMC2536484. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2536484/?page=5