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Review
. 2024 Dec;14(4):1464-1475.
doi: 10.1007/s44197-024-00324-3. Epub 2024 Nov 4.

Investigating the Determinants of Dengue Outbreak in Oman: A Study in Seeb

Abdullah Al-Manji  1 , Anak Agung Bagus Wirayuda  1   2 , Adil Al Wahaibi  3 , Mohammed Al-Azri  1 , Moon Fai Chan  4
Affiliations
Review

Investigating the Determinants of Dengue Outbreak in Oman: A Study in Seeb

Abdullah Al-Manji et al. J Epidemiol Glob Health. 2024 Dec.

Abstract

Objective: This study investigates the key factors contributing to the dengue outbreak in Oman.

Methods: Data on climate (e.g., temperature, humidity, wind pace), population traits (e.g., populace density), and vector dynamics (e.g., mosquito density) within the Seeb district of Oman from 2022 to 2023 were gathered. The partial least squares structural equation modeling (PLS-SEM) was performed to study which variables affect dengue outbreaks.

Results: The results indicate that climatic factors significantly affect the dengue vector (β = -0.361, p < 0.001) but do not directly impact the dengue outbreak. Population characteristics, however, have a more substantial impact on dengue transmission, with a total effect (β = 0.231, p = 0.002) being relatively higher than that of the vector itself (total effect: β = 0.116, p < 0.001).

Conclusions: Even with ongoing vector intervention efforts, the study underscores the need to include innovative public health interventions when considering environmental and demographic factors. More advantageous surveillance and focused interventions in excessive-threat regions are essential to mitigate the effect of dengue in Oman.

Keywords: Aedes aegypti; Climatic factors; Dengue fever; Oman; Population density; Vector control.

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Conflict of interest statement

Declarations. Ethics Approval and Consent to Participate: This study has been approved by the university’s ethics committee (SQU-EC/259/2023), the Ministry of Health (MoH/CSR/23/27598), and the Directorate General of Meteorology of Civil Aviation Authority (CAA) of Oman (Date: 30/03/2023). No individual data was used in this study, so no consent from participants was required. Consent for Publication: Not applicable. Competing Interests: The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Theoretical Framework of Factors Contributing to the 2022/23 Dengue Outbreak in Seeb, Oman
Fig. 2
Fig. 2
Weekly (2022 to 2023) admitted dengue cases, temperature, and mosquito density in Seeb, Oman
Fig. 3
Fig. 3
Final PLS-SEM Result of Factors Contributing to Dengue Outbreak in Seeb, Oman in 2022/23. Note: The numbers inside the circle represent the R2 of each LV construct; the numbers inside the bracket represent each related p-value of either the MV’s loading or the path coefficient; and the bolded arrows represent the relative strength of each parameter, either the MV’s loading or the path coefficient
See this image and copyright information in PMC

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