Must be at least 18 years old, with individuals 65 years of age or older encouraged to participate.

Must have flu symptoms and have tested positive within the last 48 hours.

Must not have received a flu vaccine within the past 6 months.

Requires meeting with a study physician to determine full eligibility.

The study physician will assess if the study is right for you.

Additional medical and lifestyle factors may be evaluated during the screening process.