ArticlePloS one2022

COVID-19 vaccine effectiveness against symptomatic SARS-CoV-2 infections, COVID-19 related hospitalizations and deaths, among individuals aged ≥65 years in Portugal: A cohort study based on data-linkage of national registries February-September 2021.

Ausenda Machado et al.PubMed ↗Full text ↗Publisher ↗

No numbers read from the abstract.