Cold Chain Maintenance and Vaccine Stock Management Practices at Public Health Centers Providing Child Immunization Services in Jimma Zone, Oromia Regional State, Ethiopia: Multi-Centered, Mixed Method Approach.

The majority of cold chain handlers showed inadequate knowledge while a significant number showed poor practice of preserving the vaccines' cold chain. Cold chain maintenance was not adequate in public health centers, necessitating attentive efforts of providing proper management of vaccine cold chains at immunization delivery points.