J&J: wirkt(e) er etwa doch? Zuletzt aktualisiert: 23. März 2022 Effectiveness of the Ad26.COV2.S vaccine in health-care workers in South Africa (the Sisonke study): results from a single-arm, open-label, phase 3B, implementation study - ScienceDirect Enter some description here... https://www.sciencedirect.com/science/article/pii/S0140673622000071
