74,811
Participants
Start Date
September 20, 2020
Primary Completion Date
March 31, 2021
Study Completion Date
March 31, 2021
Flu shot text messages
Participants will receive text messages per descriptions listed in the arms.
Geisinger Health, Danville
University of Pennsylvania Health System, Philadelphia
Collaborators (1)
Geisinger Clinic
OTHER
University of Pennsylvania
OTHER