Effectiveness of SARS-CoV-2 Vaccines against Omicron Infection and Severe Events: A Systematic Review and Meta-Analysis of Test-Negative Design Studies https://www.medrxiv.org/content/10.1101/2023.02.16.23286041
Effectiveness of SARS-CoV-2 Vaccines against Omicron Infection and Severe Events: A Systematic Review and Meta-Analysis of Test-Negative Design Studies https://www.medrxiv.org/content/10.1101/2023.02.16.23286041