Vaccine Storage and Handling Practices among routine immunization service providers in a metropolitan city of North-Central Nigeria

Abstract

Background: The efficacy of vaccines can be compromised by faulty transport, storage, and handling. This study was conducted to assess the knowledge and practice of vaccine storage and handling among Primary Health Care Workers (PHCWs) offering routine immunization (RI) services in static health facilities in Ilorin metropolis, North-central Nigeria.

Methodology: It was a descriptive cross-sectional study carried out among 457 Primary Health Care Workers (PHCWs) in 2 Local Government Authorities in Kwara State, north central Nigeria, using multi stage sampling technique. The research instruments were pretested self-administered questionnaire and observational checklist. The data generated were analyzed using EPI-INFO version 3.5.1 software package. Level of significance was predetermined at p-value of less than 0.05 at 95% confidence interval.

Results: About half of the respondents (52.1%) knew the optimal vaccine storage temperature, 35.4% knew that freezing is harmful to certain vaccines. Although, 67.8% were aware of the 'shake test', only 48.4% of them knew how to conduct it. Up to 367 (80.3%) acknowledged that heat is harmful to vaccines. Even though, 267 (58.4%) knew the vaccine vial monitor (VVM) stages, only 248 (45.3%) could interpret the VVM correctly. About 30% of the health facilities (HFs) had adequate vaccine storage equipments while less than one third (28.6%) refrigerators were used exclusively for vaccine storage. However, functioning thermometers were present in all the refrigerators devoted to vaccine storage.

Conclusions: Vaccine storage and handling practices among PHCWs providing routine immunization (RI) services in the study area was still sub-optimal. There is need for periodic on the job training and supportive supervision of health workers by middle cadre immunization officers in the local government to improve on the vaccine storage and handling practices of RI service providers.

Keywords: Routine immunization, knowledge, vaccine handling, Nigeria, practices