Re-emergence of Aedes aegypti (Linnaeus) in Egypt under climate changes

Aedes aegypti, the primary vector of several medically significant arboviruses, including dengue fever, yellow fever, chikungunya, and Zika viruses, was successfully eradicated from Egypt in 1963. However, reports of its re-emergence and associated dengue outbreaks in southern Egyptian governorates since 2011 have raised concerns. This study aimed to model the current and future distribution of Ae. aegypti in Egypt. Locally collected occurrence data were combined with bioclimatic, anthropogenic, and biological environmental variables to identify key factors driving the distribution of Ae. aegypti. The modeling of maximum entropy (MaxEnt) showed good performance (AUC mean = 0.975; TSS mean = 0.789) and identified the density of the human population, the annual precipitation and the normalized difference vegetation index (NDVI) as key determinants of the habitat suitability of Ae. aegypti. The present-day predictions highlight the Nile Valley, Nile Delta, Fayoum Basin, Red Sea coast, and ..., The study considers bioclimatic, anthropogenic, and biological environmental variables to understand Aedes aegypti habitat.
Bioclimatic variables: Nineteen bioclimatic variables were sourced from the WorldClim database. To avoid the influence of highly correlated variables, the researchers conducted a principal component analysis and selected three key variables (annual precipitation, mean temperature of the warmest quarter, and temperature seasonality).
Anthropogenic variable: Human population density data was obtained from the WorldPop dataset through the Google Earth Engine platform, using the median range from 2000 to 2020.
Biological environmental variable: Normalized difference vegetation index (NDVI) data, representing vegetation cover, was acquired from the Moderate Resolution Imaging Spectroradiometer (MODIS) MOD13A2 product on the Google Earth Engine platform, calculating the median range from 2000 to 2015.
Future Projections: To predict the impact of future changes, the resea..., , # Re-emergence of Aedes aegypti (Linnaeus) in Egypt under climate changes

## General Information

Created: December 2024
Authors:

* Mustafa M. Soliman ([[e-mail]](mailto:[e-mail])) | ORCID: 0000-0002-0905-4473
* Abdallah M. Samy ([[e-mail]](mailto:[e-mail])) | ORCID: 0000-0003-3978-1134
* Magdi S. El-Hawagry ([[e-mail]](mailto:[e-mail])) | ORCID: 0000-0001-9162-5265

## Dataset Description

This dataset supports research modeling the current and future distribution of Aedes aegypti mosquitoes in Egypt using MaxEnt. The study combines locally collected data with bioclimatic, anthropogenic, and biological variables to identify key environmental factors influencing mosquito distribution.

### Data Collection

* 48 Ae. aegypti occurrence records spanning 1925-2023
* Collected from nine Egyptian governorates:
* Alexandria
* Assiut
* Aswan
* Beni Suef
* Cairo
* Fayoum
* Minya
* Qena
* Red Sea

### Data Sources...