- Anniversary
- Membership
- Publications
- Resources
- Education
- Events
- Advocacy
- Careers
- About
- For Pain Patients and Professionals
Public health organizations have recommended various definitions of influenza-like illnesses under the assumption that the symptoms do not change during influenza virus infection. To explore the relationship between symptoms and influenza over time, we analyzed a dataset from an international multicenter prospective emergency department (ED)-based influenza-like illness cohort study.