Prevalence of dengue fever in Saudi Arabia: Jeddah as a case study

Author:

Alyahya Hanan S.1

Affiliation:

1. Department of Biology Sciences, Faculty of Sciences King Abdulaziz University Jeddah Saudi Arabia

Abstract

AbstractDengue fever is widespread in tropical and subtropical regions, including Saudi Arabia. Aedes aegypti (Diptera: Culicidae) transmits dengue and many other diseases, including chikungunya and Zika. This study provides an overview of dengue fever in Saudi Arabia since the first case was recorded in the early 1990s. In addition, it focuses on the epidemiological situation in Jeddah as a case study to study the spatial distribution of dengue cases using Geographic Information Systems (GIS) techniques over 5 years, from 2019 to 2023. The first recorded case in Saudi Arabia was in October 1993; however, daily data indicates that 2023 is a major epidemic year. The number of infections has reached 4099 so far during the first half of the year, which indicates a significant increase compared to previous years. GIS analysis has unveiled the locations of high infection rates across multiple municipalities, commonly called hotspots, and identified areas where dengue cases remain relatively low. The Inverse Distance Weighted (IDW) tool was used to determine the severity of infection in different areas of Jeddah. The study concluded that factors such as temperature, rainfall, and septic tanks in areas that lack a proper sanitation network are the most contributing factors to the spread of disease vectors and, thus, dengue. Winter rainfall creates conducive breeding environments for dengue mosquito vectors, increasing transmission rates. On the other hand, summer heat accelerates the mosquito life cycle and enhances viral replication, heightening the risk of dengue transmission.

Publisher

Wiley

Subject

Insect Science

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