Iceberg phenomenon is shown by
- poliomyelitis (70-80%)
- Rubella (45-50%)
- Mumps (20-30%)
- Influenza (50-70%)
- Japanese encephalitis (20-30%)
- Hepatitis A
- Hepatitis B
- Diphtheria
Iceberg phenomenon is not shown by
T – Tetanus
R – Rabies
M – Measles
(Since these diseases have no subclinical cases)