We're sorry. This study is closed and no longer recruiting participants.
STUDY BASICS
We are seeking adults 50-70 years old who plan to receive an influenza (flu) vaccine from a UPMC doctor or a pharmacy offering FDA licensed egg-free type flu vaccine. This study will involve 3 study visits with blood draws, each fall for 3 flu seasons (2022-2024). We are especially interested in how people with different body weights respond to the flu vaccine.