Table 3.

Classification of countries according to their immunization maturity grid.

Immunization maturity grid	Countries in the maturity grid	Rating criteriaa
Level 1	The Central African Republic, South Sudan, Sierra Leone, and Liberia	Countries with very weak immunization systems
Level 2	Guinea, Angola, and the Democratic Republic of Congo	Countries with significant deficiencies in immunization service delivery
Level 3	Cameroon, Niger, Ethiopia, and Malawi	Countries with targeted areas for improvement in their immunization programs
Level 4	Burundi and Zimbabwe	Countries with strong and robust immunization systems

^aAdopted from the Business case for WHO immunization activities on the African continent 2018 (35).