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Vaccines have significantly lowered the occurrence of diseases like polio,
measles, and tetanus, leading to a rise in life expectancy globally. The
worldwide elimination of smallpox stands as proof of the success of vaccination
initiatives. Furthermore, standard immunization initiatives have averted
millions of fatalities each year, especially in low-income nations where
infectious diseases present a grave risk. Vaccines not only preserve lives but
also ease the financial strain on healthcare systems by decreasing the necessity
for treatment and hospitalization associated with vaccine-preventable diseases.
Vaccines save 4–5 million lives each year, according to the WHO. Immunization has led to the eradication of smallpox and a 99% reduction in polio cases worldwide. They not only protect individuals but also create herd immunity, safeguarding communities.
Success Story Example: The measles vaccine prevented an estimated 23 million deaths between 2000 and 2018.
WHO Link:
https://www.who.int/news-room/fact-sheets/detail/immunization-coverage