COV;;;-19 vaccines in 2026 remain highly effective at reducing severe illness, hospitalization, and death, especially with updated Omicron-adapted boosters. While vaccinated individuals can still experience breakthrough infections, the overall risk of serious outcomes is significantly lower compared to the unvaccinated.
How COV;;;-19 Vaccines Work
Immune response: Vaccines train the immune system to recognize SARS-CoV-2 and mount a rapid defense.
Platforms:
mRNA (Pfizer, Moderna), protein-based (Novavax), and adenovirus-vectored vaccines remain widely used.
Boosters:
