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Interim analysis of COVID-19 vaccine effectiveness against hospitalisation and death using electronic health records in six European countries
weeks after administration was 3% (95% CI:-26 709; 100). Overall, results indicated that booster doses restored protection shortly after administration, but it waned in the period up to 24 weeks after ...
Monitoring COVID-19 vaccine effectiveness against COVID-19 hospitalisation and death using electronic health registries in ≥65 years old population in six European countries, October 2021 to November 2022.
random-effects meta-analysis. RESULTS: For ≥80 years, considering unvaccinated as the reference, VE against COVID-19 hospitalisation decreased from 66.9% (95% CI: 60.1; 72.6) to 36.1% (95% CI:-27.3; 67.9) for the primary ...