Entries by Daniel Massillon


This study is investigating the safety and efficacy of the Johnson & Johnson Adv.26 booster vaccine in healthy adults who have previously received the Pfizer COVID-19 vaccine. This study is currently enrolling participants.


This study is comparing the immunogenicity and safety of an investigational yellow fever vaccine with the previously approved YF-VAX vaccine. The main purpose of the study is to determine if the study vaccine is safe and creates comparable immune responses to that of the YF-VAX vaccine. This study is currently enrolling.