This statistic shows the countries with the smallest percentage of one-year-olds who had received a Diphtheria-tetanus-pertussis (DTP3) vaccination in 2020. In that year, only around 39 percent of one-year-olds in Papua New Guinea had received a DTP3 vaccination.
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WHO. (May 20, 2022). Countries with the smallest percentage of infants who had received a Diphtheria-tetanus-pertussis (DTP3) vaccination in 2020 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 28, 2026, from /statistics/711326/ranking-of-bottom-20-countries-for-dtp3-immunization-coverage/
WHO. "Countries with the smallest percentage of infants who had received a Diphtheria-tetanus-pertussis (DTP3) vaccination in 2020." Chart. May 20, 2022. ÌÇÐÄÆƽâ°æ. Accessed July 28, 2026. /statistics/711326/ranking-of-bottom-20-countries-for-dtp3-immunization-coverage/
WHO. (2022). Countries with the smallest percentage of infants who had received a Diphtheria-tetanus-pertussis (DTP3) vaccination in 2020. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 28, 2026. /statistics/711326/ranking-of-bottom-20-countries-for-dtp3-immunization-coverage/
WHO. "Countries with The Smallest Percentage of Infants Who Had Received a Diphtheria-tetanus-pertussis (Dtp3) Vaccination in 2020." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 20 May 2022, /statistics/711326/ranking-of-bottom-20-countries-for-dtp3-immunization-coverage/
WHO, Countries with the smallest percentage of infants who had received a Diphtheria-tetanus-pertussis (DTP3) vaccination in 2020 ÌÇÐÄÆƽâ°æ, /statistics/711326/ranking-of-bottom-20-countries-for-dtp3-immunization-coverage/ (last visited July 28, 2026)
Countries with the smallest percentage of infants who had received a Diphtheria-tetanus-pertussis (DTP3) vaccination in 2020 [Graph], WHO, May 20, 2022. [Online]. Available: /statistics/711326/ranking-of-bottom-20-countries-for-dtp3-immunization-coverage/
