Effectiveness of the Sputnik V, AstraZeneca, and Sinopharm vaccines for the risk of infection and death due to COVID-19 in people older than 60 years in Argentina.

Effectiveness of rAd26-rAd5, ChAdOx1 nCoV-19, and BBIBP-CorV vaccines for risk of infection with SARS-CoV-2 and death due to COVID-19 in people older than 60 years in Argentina: a test-negative, case-control, and retrospective longitudinal study – The Lancet

Commentary: Evaluating COVID-19 vaccines in the real world – The Lancet