DM, NVdV, BH are employed by Moderna, Inc. SK, SF, DC, MH, AP, MM are employed by ICON Plc and have worked with Moderna Inc., GlaxoSmithKline Pharmaceuticals, and Pfizer Inc. Sponsorship for this study and Rapid Service Fee were provided by Moderna Inc. I confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.