- Effectiveness of BBIBP-CorV, BNT162b2 and mRNA-1273 vaccines against hospitalisations among children and adolescents during the Omicron outbreak in Argentina: A retrospective cohort study The Lancet
- Data show benefits of additional vaccine doses against omicron Healio
- New COVID-19 Vaccine Effectiveness Data Showcase Protection Gained by 3rd and 4th Doses | CDC Online Newsroom | CDC Centers for Disease Control and Prevention (.gov)
- AstraZeneca's COVID-19 vaccine provides equally effective protection against hospitalisation and deaths compared with mRNA vaccines, latest expert review shows Nation Thailand
- COVID vaccination in older adults Nature.com
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