If you are healthy, have some time, and have an interest in helping researchers make discoveries about influenza (the flu), we need you for a screening study. Participants will be asked to make one visit to the NIH Clinical Center in Bethesda, Maryland, for a blood draw, medical history, and physical exam. The screening is used to determine eligibility for future studies that will help researchers learn more about the development and course of the flu virus. Participants will be compensated for their time. You may be eligible for screening if you are: • 18-50 years old
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