| Abstrakt: |
Vaccine effectiveness of thebooster was similar against infection with BA.1(44%, 95% CI 38-50%) and BA.2 (40%, 95% CI 35-40%).Protection against severe disease by the booster forBA.1 (83%, 95% CI 76-88%) and BA.2 (78%, 95% CI 73-82%)was comparable to that by the primary series forDelta (80%, 95% CI 73-85%)." The news reporters obtained a quote from the research from theMinistry of Health, "Individuals with a negative PCR from 1September, 2021, to 30 November, 2021, and 1 December, 2021, to25 April, 2022, served as controls for the Delta and Omicron variantsrespectively, and PCR-positive individuals within these two timeperiods served as cases. [Extracted from the article] |
