Effectiveness of COVID-19 vaccines against hospitalisation in Latin America during three pandemic waves, 2021–2022: a test-negative case-control design

https://www.thelancet.com/journals/lanam/article/PIIS2667-193X(23)00200-4/fulltext?dgcid=hubspot_update_feature_updatealerts_lanam&utm_campaign=update-lanam&utm_medium=email&_hsmi=284992280&_hsenc=p2ANqtz-83foObn-qGB3SAT48WD-DYyJkwcgh1wrVjzxZXZ_NvrxhKGUaNgUMW4RSQvrK7aY77aOJS9vazoKC6Lih3UFBgx9-6Qw&utm_content=284817550&utm_source=hs_email