Hey, look at that. USAID publication that survived the purge of websites because they posted on Medium instead...
Innovative Immunizations Past and Present
60 years of USAID support for life-saving science and health care https://medium.com/usaid-2030/innovative-immunizations-past-and-present-eba67aeab56b
Since the 2000s, USAID has partnered with Gavi, the Vaccine Alliance, to bring public and private sectors together to expand access to life-saving vaccines in 73 low-income countries. Since 2001, USAID has contributed almost $2.8 billion to Gavi, helping 73 lower-income countries immunize more than 822 million children and save more than 14 million lives. Our partnership with Gavi has helped introduce and scale-up new vaccines as well as build sustainable immunization systems needed to support their distribution and delivery.