About 2,970,000 results
  1. Medical Diseases & Conditions - Mayo Clinic

  2. A to Z list of common illnesses and conditions | NHS inform

  3. All Diseases and Conditions | NIAMS

  4. Infectious diseases - Symptoms & causes - Mayo Clinic

  5. Communicable diseases: Types, symptoms, prevention, and …

  6. Most Common Health Problems | U.S. News

  7. Coronavirus disease 2019 (COVID-19) - Symptoms and causes

  8. Types of Lung Diseases & Their Causes - WebMD

  9. Coronavirus - World Health Organization (WHO)

  10. 7 Common Respiratory Diseases - Verywell Health