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An African West Nile virus risk map for travellers and clinicians.

Authors :
García-Carrasco JM
Muñoz AR
Olivero J
Segura M
Real R
Source :
Travel medicine and infectious disease [Travel Med Infect Dis] 2023 Mar-Apr; Vol. 52, pp. 102529. Date of Electronic Publication: 2022 Dec 19.
Publication Year :
2023

Abstract

International travellers are exposed to pathogens not commonly found in their countries of residence, including West Nile virus (WNV). Due to the difficulty of its diagnosis, little is known about its distribution in Africa. Understanding the geographic extent of risk of WNV infections is a necessity for both travellers and clinicians who advise and treat them, since there is no human vaccine. To date, there is no risk map for WNV infections in humans in Africa. Having a high-resolution risk map for the virus could be of relevance before the trip, to take preventive measures, and after the trip, for appropriate diagnosis of the disease. Virus detection in humans along the African continent were collected from official reports, and published scientific research for the period 1940 to 2020, and then geo-referenced in order to use biogeographical modelling for WNV. Models were based on fuzzy logic and machine learning algorithms and were designed to identify the environmental drivers that explain the distribution of human cases and to locate favourable areas for infections. We elaborated a high-resolution risk map for WNV infections that highlights favourable areas for infections in Africa. Although WNV infections are widely spread across Africa, the risk of the disease is not homogenously distributed. Popular tourist destinations such as Morocco, Tunisia, and South Africa, are high-risk areas for WNV infection.<br /> (Copyright © 2022 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Details

Language :
English
ISSN :
1873-0442
Volume :
52
Database :
MEDLINE
Journal :
Travel medicine and infectious disease
Publication Type :
Academic Journal
Accession number :
36549415
Full Text :
https://doi.org/10.1016/j.tmaid.2022.102529