COMBO-FLU: Combination Influenza + COVID-19 Booster

Evaluating a combined seasonal influenza and COVID-19 mRNA booster vaccine versus separate standard-of-care vaccines in healthy adults.

Key eligibility criteria

• Adults 18–64 years
• Prior COVID-19 primary series
• No vaccine in past 90 days
• No history of myocarditis

Additional criteria apply. A full eligibility review is completed by our coordinators during pre-screening — you may still qualify even if you're unsure about a criterion.