1. University of Rochester, Rochester, NY
2. Cincinnati Children’s Hospital, Cincinnati, OH
3. Pfizer Vaccine Research and Development, Hurley, United Kingdom
4. Pfizer Vaccine Research and Development, Pearl River, NY
5. Pfizer Vaccine Research and Development, Collegeville, PA
6. University of Texas Medical Branch, Galveston, TX
7. BioNTech, Mainz, Germany