National Vaccination Day (also known as National Immunization Day) is observed every year on 16 March in India to highlight the importance of vaccination in preventing infectious diseases and improving public health.
The day commemorates the first administration of the Oral Polio Vaccine (OPV) in India in 1995, which marked the launch of one of the largest immunisation campaigns in the world.
Key Highlights
| Aspect | Details |
| Observed on | 16 March every year |
| Also Known As | National Immunization Day |
| First Observed | 1995 |
| Commemorates | First oral polio vaccine dose in India |
| Associated Programme | Pulse Polio Immunisation Programme |
The day aims to spread awareness about vaccination and encourage people to get immunised against preventable diseases.
Theme for National Vaccination Day 2026
Theme: “Immunization for All is Humanly Possible.”
Focus of Theme
- Universal access to vaccines
- Expanding immunisation coverage
- Reaching underserved populations
- Strengthening healthcare systems
The theme emphasises that vaccines should be accessible to everyone regardless of location or socio-economic status.
Diseases Prevented Through Vaccination
Vaccination protects against several vaccine-preventable diseases, including:
| Disease | Vaccine |
| Polio | Oral Polio Vaccine (OPV) |
| Tuberculosis | BCG vaccine |
| Measles | Measles vaccine |
| Mumps | MMR vaccine |
| Rubella | MMR vaccine |
Vaccines are important not only for children but also for adults.
Origin of National Vaccination Day
The observance is linked to the launch of the Pulse Polio Immunisation Programme in India.
| Aspect | Details |
| Launch Date | 16 March 1995 |
| Objective | Eliminate polio from India |
| Target Group | Children aged 1–5 years |
| Vaccine | Oral Polio Vaccine (OPV) |
During nationwide campaigns, polio drops were administered to millions of children through schools, hospitals, and community centres.
Global Polio Eradication Initiative
The Pulse Polio programme was launched after a global call to eliminate polio by the World Health Organization in 1988.
- India joined the international campaign and successfully conducted mass immunisation drives.
- India was declared polio-free in 2014, a major milestone in public health.
Role of Vaccination in Public Health
Vaccination works by training the immune system to recognise and fight harmful pathogens.
How Vaccines Work
- Vaccines contain:
- Weakened or inactivated pathogens
- Protein fragments of viruses or bacteria
- Genetic instructions (e.g., mRNA vaccines)
- After vaccination:
- The immune system produces antibodies
- Memory cells are created
- If the real pathogen enters later:
- The immune system responds quickly and effectively
Benefits of Vaccination
| Benefit | Explanation |
| Disease Prevention | Protects against serious infectious diseases |
| Herd Immunity | Protects vulnerable populations |
| Reduced Mortality | Saves millions of lives annually |
| Outbreak Prevention | Limits spread of epidemics |
Vaccination is considered one of the most cost-effective public health interventions.