
Vaccination rates for select vaccines among one-year-olds worldwide 1980-2019
Vaccination rates among one-year-olds have risen drastically in the past four decades, with global coverage for some of the most important vaccines increasing from below twenty percent in 1980 to above eighty percent in 2019. Several vaccines introduced on a larger scale in the 1990s, such as the Hepatitis B vaccine, have increased from just one percent coverage to well over two thirds coverage in 2019. As many infants receive multiple vaccines at one time, this has meant that global coverage trends have been fairly similar for the most common vaccines, and that coverage for newly developed vaccines has grown relatively quickly (such as the Hepatitis B and Inactivated Polio vaccines).