The maturity of PHC systems vary widely from country to country, therefore the actions that EPI managers, ministry of health program managers and other PHC leaders can or should take will vary on their context.
Nascent PHC systems may not yet have the political commitment and policies in place for integrated PHC. These countries can benefit from immunization activities that strengthen the broader health system and encourage integration at the point of service delivery. Policies may need to be reformed to support integrated models of care.
Mature PHC systems already have political commitment and strong governance of PHC, including policies that support integrated service delivery. These countries should continue to focus on implementing policies that mutually strengthen immunization and PHC. Mature PHC systems can support the expanded reach of life-course vaccines.