COVID vaccine protection stayed strong in teens during Delta, data showVaccine effectiveness (VE) for the two-dose Pfizer/BioNTech COVID-19 vaccine was up to 91.5% in Israeli teens 12 to 15 years old during the Delta (B1617.2) variant outbreak, according to a study published yesterday in Emerging Infectious Diseases.Israel made the Pfizer vaccine available for teens starting Jun 2, and by Aug 26, 46.1% of those who were eligible were partially vaccinated and 31.2% were fully vaccinated.
To estimate VE, the researchers looked at those who received their second dose between Jul 1 and Jul 24, excluding those who had a history of COVID-19 infection.VE against lab-confirmed infection was 55.3% in the first week post-vaccination, rising to 87.1%