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  1. 8 Illnesses That Cause Flu-Like Symptoms That Aren’t the Flu - Health

  2. Conditions With Flu-Like Symptoms - WebMD

  3. 14 Illnesses With Flu-Like Symptoms - GoodRx

  4. Conditions With Flu-Like Symptoms - Cleveland Clinic

  5. 13 Causes of Flu-Like Symptoms and Their Differences

  6. Influenza (flu) - Symptoms and causes - Mayo Clinic

  7. Flu-like symptoms: Definition and causes - Medical News Today

  8. Influenza-like illness - Wikipedia

  9. Common Flu Symptoms Doctors Are Seeing In Winter 2025

  10. Flu - NHS