Neutralizing Antibody Immune Correlates for a Recombinant Protein Vaccine in the COVAIL Trial.

Fong, Youyi; Dang, Lauren; Zhang, Bo; Fintzi, Jonathan; Chen, Shiyu; Wang, Jing; Rouphael, Nadine G; Branche, Angela R et al. · Clin Infect Dis · 2025

prospective_cohort · Level II

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Abstract

For COVAIL recipients of a coronavirus disease 2019 (COVID-19) Sanofi booster vaccine, neutralizing antibody titers were assessed as a correlate of risk (CoR) of COVID-19. Peak and exposure-proximal titers were inverse CoRs with covariate-adjusted hazard ratios (95% confidence intervals) 0.30 (0.11, 0.78) and 0.25 (0.07, 0.85) per 10-fold increase in weighted average titer.

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