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Dengue Infection Boosts Immunity for Future Infections

9/9/2025

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Story summary
  • A Duke-NUS Medical School study shows dengue infection enhances immune responses to future infections and vaccines.
  • Natural dengue infection reprograms innate immune cells, resulting in stronger antibody responses compared to vaccination.
  • Blood samples from U.S. and Singapore participants revealed distinct gene activity in dengue-experienced individuals.
  • Waning immunity from Japanese encephalitis vaccination correlates with increased dengue severity.
  • Vaccinated individuals experience milder dengue cases, but this protection decreases over time.