Determinants of measles-rubella vaccine second dose uptake among     24 to 35 month-old children in Wajir Town, Kenya

Musa A. Mohamed; Josephat M. Nyagero; Micah O. Matiangi

doi:10.18203/2394-6040.ijcmph20241942

Authors

Musa A. Mohamed Department of Community Health, Amref International University, Nairobi, Kenya
Josephat M. Nyagero Department of Community Health, Amref International University, Nairobi, Kenya
Micah O. Matiangi Department of Community Health, Amref International University, Nairobi, Kenya

DOI:

https://doi.org/10.18203/2394-6040.ijcmph20241942

Keywords:

Measles, Rubella, Uptake, Wajir, Kenya

Abstract

Background: Two vaccine doses can prevent measles and rubella (MR2); achieving ≥95% coverage is crucial for effective population immunity. Low MR2 uptake is linked to increased measles outbreaks. With only 57.1% MR2 uptake, Kenya reported 1,775 measles cases in 2021. This study evaluates MR2 uptake and its determinants among 24-35-month-old children in Wajir town.

Methods: A cross-sectional design was employed using cluster sampling in Wajir town, Wajir East sub-county, in December 2023. Parents of 399 children aged 24-35 months were interviewed using a pretested and predesigned questionnaire. Data was analyzed in SPSS V27. Socio-demographic characteristics were summarized in proportions. COR, aOR, and 95% Confidence Intervals measured association and significance. The analysis was two-tailed with a significance level set at p<0.05.

Results: The study included 399 children with a median age of 25 months (interquartile range 24-29). MR2 uptake was 49.6%. Statistically significant predictors of MR2 uptake were parents' or guardians' occupation (aOR 2.85, 95% CI=1.18, 6.87, p=0.020), knowledge of the number of measles vaccines (aOR 16.05, 95% CI=4.16, 62.87, p<0.001), and the child’s gender (aOR 3.9, 95% CI=1.81, 7.86, p<0.001). Inadequate awareness about MR2 was the primary reason for not vaccinating children.

Conclusions: MR2 uptake was low compared to the WHO-recommended target of ≥95%. The parents’ occupation, knowledge of the vaccine schedule, and the child’s gender determined MR2 uptake. The Wajir County Department of Health should carry out targeted knowledge-creation for parents/guardians and gender-aligned advocacy to improve MR2 uptake.

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