This study aims to use vaccination information from state vaccine registries linked with HealthVerity insurance claims for the following: * to measure how effective the Pfizer-BioNTech vaccine is at preventing post-COVID conditions. * to understand characteristics of patients who are receiving COVID-19 vaccines. All patients whose information is kept unidentified in the HealthVerity database are eligible to be included for both aims of this study.
This trial was terminated before completion. Termination can indicate safety signals, futility findings, or business/regulatory decisions by the sponsor.
Pfizer Inc (PFE) is the sponsoring company for this trial. BiotechSign currently grades this company C (52/100) based on composite catalyst signals across its full pipeline. This trial is one data point in that overall catalyst picture.