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Changes in the breadth of vaccination coverage, 2000 to 2019. The global average coverage for 13 antigens provided through national immunization programs (World Health Organization United Nations Children’s Fund Estimates of National Immunization Coverage). Abbreviations: Hep B, hepatitis B; Hib, Haemophilus influenzae type b; HPV, human papilloma virus; IPV, inactivated polio vaccine; Pneumo, pneumococcus; Rota, rotavirus.
