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  1. Is it a cold, flu, RSV or COVID-19? Here’s how to tell the difference

  2. Allergies, Cold, Flu or COVID-19? How to Tell the Difference

  3. Do I Have a Common Cold or Allergies? - Healthline

  4. COVID-19, flu, RSV, cold or allergies? How to tell the difference

  5. Healthy Habits: Coughing and Sneezing | Water, Sanitation, and ...

  6. Flu or Cold? Know the Differences - WebMD

  7. Coughing: Is It COVID-19, Flu, Cold, RSV, or Allergies? - Healthline

  8. Common cold - Symptoms and causes - Mayo Clinic

  9. Is It Flu, COVID-19, Allergies, or a Cold? | NIH News in Health

  10. Different Symptoms for COVID-19, Flu, Allergies, and Cold - Healthline