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Impact of vaccinations UPSC NOTE


  • A new study in The Lancet shows vaccinations saved 150 million children in the last 50 years.

  • Measles vaccination alone saved 60% of these lives.

  • Large-scale immunization programs led to this significant decline in vaccine-preventable diseases.

  • Measles vaccination rates rose globally from <20% (2000) to 70% (2021).

  • Similar increase observed for DTP3 (diphtheria, tetanus, pertussis) vaccinations.

  • Vaccinations are estimated to contribute to 40% of the decline in infant mortality rates (10% in 1974 to 3% in 2024).

Global Vaccination Coverage:

  • Measles vaccinations:

  • Highest impact - 94 million lives saved.

  • Western Pacific region: Most dramatic increase (2% in 2000 to 91% in 2021).

  • Southeast Asia: Significant progress (15% in 2010 to nearly 80% in 2021)

  • DTP3 vaccinations:

  • Over 80% of infants received all 3 doses globally in 2021 

  • Western Pacific region again leads (less than 10% in 1980 to 90% in 2021) .

Historical Perspective:

  • 50 years ago, vaccination coverage was minimal outside of Europe and North America.

  • World Health Assembly formed the Essential Programme on Immunization in 1974, leading to a rise in vaccination rates.

  • Gavi, the Vaccine Alliance, was formed in 2000 to address vaccination gaps in developing countries.

Challenges and the Way Forward:

  • Millions still die from preventable diseases due to insufficient vaccination coverage

  • Universal vaccine coverage is crucial.

This requires:

  • Increased government investment in immunization programs.

  • Addressing vaccine hesitancy and misinformation.


  • Vaccinations are a powerful tool in saving lives and reducing child mortality. 

  • Continued efforts are needed to achieve universal vaccination coverage and protect children worldwide.



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Impact of vaccinations UPSC NOTE
Impact of vaccinations UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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