demonstrated suggested inconclusive safety concern ongoing study display ongoing demontrated benefit only observational study
COVID-19 severe or critically
COVID-19 prophylaxis (excluding children)
first booster dose Arbel Kislaya Sisonke 2 ... Tenforde C4591031- first boost Barda Tenforde Patalon McConeghy Mattiuzzi Accorsi England ... Patalon Pfizer/BioNTech Booster study Ontario ... Abu-Raddad Bar-On COVI3 C4591031- first boost
mRNA vaccine (any) - first boost Tan
Comirnaty - first boost C4591031- first boost C4591031- first boost

4 studies excluded by filtering options 2

9129 COV-BOOST, 2021 210excludedrisk of bias not avaialble
9130 Gilboa, 2021 200excludedrisk of bias not avaialble
9275 Mattiuzzi, 2022 200excludedrisk of bias not avaialble
9290 Danza, 2022 2320excludednot a RCTrisk of bias not avaialble