20 Common & Less Common Illnesses: A Comprehensive List

1. Influenza

2. COVID-19

3. Measles

4. Mumps

5. Rubella

6. Chickenpox

7. Pertussis (whooping cough)

8. Diphtheria

9. Tetanus

10. Polio

11. Typhoid

12. Cholera

13. Malaria

14. Dengue fever

15. Yellow fever

16. Ebola

17. Marburg

18. Hantavirus

19. Rabies

20. Typhoid fever