Factsheets on COVID-19 Vaccines

In partnership with the Asian Development Bank, IVAC developed factsheets summarizing key measures for COVID-19 vaccines such as effectiveness and protection against severe disease.

 


Duration of Protection of COVID-19 Vaccines against Omicron (May 2022)

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Key Facts:

  • COVID-19 vaccines work less well against Omicron than other variants
  • Vaccine protection against symptomatic disease drops quickly
  • Protection against severe disease, like hospitalization and ICU admission, is better and durable for many months
  • A booster shot substantially improves protection against Omicron infection and disease
  • Booster protection against severe disease lasts for many months
  • Booster protection against symptomatic disease declines quickly