Poor funding by governments and lack of political commitment as well as ownership at different levels resulted in the collapse of the Nigerian Primary Health Care system in the 1990s. As a result, many health facilities ceased to function or stopped providing RI services; vaccine stock outs, therefore, became commonplace. The few facilities providing RI services were not able to reach distant communities, as minimal or no outreach/mobile immunization activities were conducted.


Furthermore, there were no activities to sustain community demands. Other significant reasons for the continuing low coverage include lack of awareness of immunization schedule, time and place, poor attitude of the health worker and apparent stock out of vaccines at service delivery points. Today, in many states, these problems still persist.


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