1. World Health Organization, Immunization Agenda 2030: A Global Strategy to Leave No One Behind, 2020.
2. Vanderslott S, Dadonaite B, Roser M. Vaccination. 2013: Online.
3. Gavi the Vaccine Alliance. Sustainable Development Goals. 2020 18 February, 2020; Available from: https://www.gavi.org/our-alliance/global-health-development/sustainable-development-goals.
4. World Health Organization. Global Vaccine Action Plan 2011–2020. USA; 2013.
5. World Health Organization. Immunization coverage. 2020 July 15, 2020 August 4, 2020]; Available from: https://www.who.int/news-room/fact-sheets/detail/immunization-coverage.