"Infant mortality rates have plummeted over the last 50 years.
Globally, they’ve fallen by over two-thirds, from around 10% in 1974 to less than 3% today.
The study’s researchers estimate that 40% of this decline is due to vaccines."
Hannah Ritchie (2024) - “Vaccines have saved 150 million children over the last 50 years” Published online at OurWorldInData.org. Retrieved from: 'https://ourworldindata.org/vaccines-children-saved' [Online Resource]