A recent national survey in Nigeria revealed that only 33% of children received all three doses of the pentavalent vaccine (which includes vaccines for Diphtheria, Tetanus, Pertussis, H. influenza and Hepatitis B)—well below the global World Health Organization goal of 90%; for comparison, the global average for children who have received all three doses is 85%. Kyla Hayford, PhD, is an Assistant Scientist at the Johns Hopkins International Vaccine Access Center who works on improving surveillance of the effectiveness of vaccines and how to improve coverage rates in countries like Nigeria. In this podcast, we talk about better tests for estimating the effectiveness of vaccination (i.e. serological surveillance), the causes of lower coverage rates in Nigeria, and how to translate research into interpretable and useable material for policymakers.
Available Episode Formats:
Related Episode Links:
- Nigeria National Immunization Survey – infographic and summary of key findings
- 2017 Assessment Report of the Global Vaccine Action Plan by Strategic Advisory Group of Experts on Immunization (SAGE)/ World Health Organization
- General info on WHO immunization policy and strategies
- Dr. Hayford’s profile page at Johns Hopkins School of Public Health