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Meta-Analysis
. 2024 Sep 3;24(1):914.
doi: 10.1186/s12879-024-09828-6.

Epidemiology of measles outbreaks, incidence and associated risk factors in Ethiopia from 2000 to 2023: a systematic review and meta-analysis

Daniel Eshetu  1 , Wagi Tosisa  2 , Belay Tafa Regassa  2 , Gadissa Bedada Hundie  3 , Andargachew Mulu  4
Affiliations
Meta-Analysis

Epidemiology of measles outbreaks, incidence and associated risk factors in Ethiopia from 2000 to 2023: a systematic review and meta-analysis

Daniel Eshetu et al. BMC Infect Dis. .

Abstract

Background: Although a universal vaccine is available and Ethiopia is working outstandingly towards measles elimination, a recurrent measles outbreak has occurred each year in different parts of the country. Therefore, understanding the epidemiology of measles cases, the incidence of confirmed measles virus cases and related risk factors is crucial. Here, we conducted a systematic review and meta-analysis to summarize information regarding the epidemiology, measles incidence rate and risk factors for national measles infections occurring in the past two decades, from 2000 to 2023.

Methods: Data from electronic databases, including PubMed, African Journal Online, WHO databases and Google Scholars, were searched to identify studies describing measles outbreaks, incidence rates and associated factors in Ethiopia that occurred between 2000 and 2023. Important basic information was extracted in an Excel spreadsheet and imported into Comprehensive Meta-analysis Software version 3 to evaluate the associations between measles outbreaks and different risk factors. We pooled the odds ratios (ORs) and 95% confidence intervals (CIs) for every included risk factor to evaluate the associations with measles outbreaks.

Results: We included 36 studies involving 132,502 patients with confirmed measles cases in Ethiopia. The results of this systematic review and meta-analysis revealed that measles outbreaks were more frequently reported in the Oromia region (73,310 (33.1%)), followed by the Southern Nation Nationalities of Ethiopia region (29,057 (13.4%)). The overall pooled analysis indicated that the prevalence of measles susceptibility was 67.5% (95% CI: 67.3-67.8%), with an I2 of 99.86% and a p value for heterogeneity < 0.0001. The non-vaccinated status of the children, their contact history with measles cases, their travel history, the presence of cases in family or neighbors, and malnourished patients were identified as factors associated with the high prevalence and recurrent measles infections in Ethiopia.

Conclusion: The results of this systematic review and meta-analysis indicated that the pooled prevalence of measles infection was high, which is a public health concern in Ethiopia. Thus, strengthening healthcare services, regular vaccination campaigns, and the integration of health education activities with other services may decrease the incidence rate.

Keywords: Ethiopia; Incidence; Measles virus; Outbreak; Risk factors.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
PRISMA (flow chart of study selection for epidemiology of measles outbreaks, incidence and associated factors in Ethiopia from 2000 to 2023: a systematic review and meta-analysis)
Fig. 2
Fig. 2
Incidence rate of measles in Ethiopia (Epidemiology of measles outbreaks, incidence and associated factors in Ethiopia from 2000–2023: a systematic review and meta-analysis)
Fig. 3
Fig. 3
Factors associated with measles cases in Ethiopia (Epidemiology of measles outbreaks, incidence and associated factors in Ethiopia from 2000–2023: a systematic review and meta-analysis)
See this image and copyright information in PMC

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