Real-world effectiveness of Ad26.COV2.S or BNT162b2 booster vaccines against severe COVID-19 in adults who received a primary dose of Ad26.COV2.S in South Africa during the Delta period: A retrospective cohort study using medical scheme data.
- Published in:
- SAMJ: South African Medical Journal, 2025, v. 115, n. 7, p. 1, doi. 10.7196/SAMJ.2025.v115i7.2532
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- Article