WHO-recommended vaccines included in country immunization programs worldwide 2016-21
From 2016 to 2021, the number of countries worldwide including vaccines recommended by the World Health Organization (WHO) in their national immunization programs increased among all selected vaccines. The Human Papillomavirus (HPV) vaccine, a two-dose immunization scheme recommended for girls aged 9 to 14, was included in 69 countries in 2016, increasing to 114 nations by 2021. This statistic shows the number of countries worldwide that included WHO-recommended vaccines in their national immunization programs from 2016 to 2021, by vaccine.