Immunization in Developing Countries

Measuring National Immunization System Performance: A Systematic Assessment of Available Resources

“… 49 Data on denominators based on births and deaths statistics are known to be inaccurate and incomplete in LMICs, particularly at subnational levels. 12 , 50 In 2016, 76 of 96 countries reported at least 1 district with DTP3 vaccine coverage greater than 100%. 51 Unreliable data quality means that wide variations are difficult to interpret, as it is unclear if the variations are an artifact of the data or if they are true variations.…”

“… 51 Unreliable data quality means that wide variations are difficult to interpret, as it is unclear if the variations are an artifact of the data or if they are true variations. 49 Noting the importance of robust information systems to track coverage and other immunization targets, 12 , 50 newer resources are available such as the Data Quality Self-Assessment tool developed by the WHO Immunization Analysis and Insights Unit. 52 Despite improved data quality over the last 2 decades, gains were not universal, with resource-constrained countries and those with lower immunization performance continuing to have limited to poorer quality data.…”