The Journal of infectious diseases

Immune response, batch consistency, and long-term safety of the rVSVΔG-ZEBOV-GP vaccine in healthy adults

Updated

Abstract

Antibody responses to the Ebola vaccine increased by over 58-fold postvaccination and persisted through 24 months.

  • Geometric mean titers of antibodies increased in all vaccine groups by 28 days and remained elevated for 24 months.
  • All three manufacturing lots of the vaccine showed equivalent immunogenicity at 28 days.
  • Neutralizing antibody levels peaked at 18 months with no decline observed through 24 months.
  • At 28 days, at least 94% of vaccine recipients showed a significant , which remained above 91% at 24 months.
  • Female sex and a history of arthritis may be associated with an increased risk of developing arthritis following vaccination.

Simplified

Key numbers

58×
Increase in Antibody Levels
Measured by ZEBOV-GP ELISA at 28 days post-vaccination.
94%
Rate
Percentage of participants achieving at 28 days post-vaccination.
2.2
Risk Factor Odds Ratio
Odds ratio for developing arthritis associated with female sex.

Full Text

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