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. 2023 Jul 7;72(27):746–750. doi: 10.15585/mmwr.mm7227a2

FIGURE 1.

The figure is a combination bar and line chart showing the number of countries worldwide with new vaccine introductions, by vaccine and year, during 2016–2021.

Number of countries with new vaccine introductions, by vaccine and year — worldwide,* 2016–2021

Abbreviations: DTPCV4 = first booster dose of diphtheria, tetanus, and pertussis–containing vaccine; HepB-BD = hepatitis B vaccine birth dose; Hib = Haemophilus influenzae type b vaccine; HPV = human papillomavirus vaccine; MCV2 = second dose of measles-containing vaccine; PCV = pneumococcal conjugate vaccine; RCV = rubella-containing vaccine; RV = rotavirus vaccine.

* Vaccine introduction data for DTPCV4 was unavailable for 2016. For all other vaccines, no value indicates no introductions occurred for that year.