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

  2. Upper Respiratory Infection: Symptoms, Contagious, Treatment

  3. 8 Signs You Have an Upper Respiratory Infection - Healthgrades

  4. 14 Illnesses With Flu-Like Symptoms - GoodRx

  5. Conditions With Flu-Like Symptoms - Cleveland Clinic

  6. Conditions With Flu-Like Symptoms - WebMD

  7. Signs and Symptoms of Upper Respiratory Infection - Health

  8. Upper respiratory infection symptoms and treatment - Medical News Today

  9. Can You Tell If Its the Flu or COVID-19 - UCSF Health

  10. Acute Upper Respiratory Infection - Healthline