- Conditions
- Influenza, Human
- Interventions
- Flu shot text messages
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 734,383 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
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- Conditions
- COVID-19
- Interventions
- Self-Benefit/Social Norm, Self-Benefit/No Social Norm, Other Benefit/Social Norm, Other Benefit/No Social Norm
- Behavioral
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- Not listed
- Enrollment
- 16,903 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania