Towards an intelligent malaria outbreak warning model Based Intelligent Malaria Outbreak Warning in Northern part Benin, West Africa

Author:

Gbaguidi Gouvidé Jean1,Topanou Nikita2,KETOH Guillaume K.3

Affiliation:

1. West African Science Service Centre on Climate Change and Adapted Land Use (WASCAL), Togo, University

2. Kaba Laboratory of Chemical Research and Application (LaKReCA), Department of Chemistry, Faculty of Science and Technic of Natitingou, University of Abomey

3. 3Laboratory of Ecology and Ecotoxicology, Department of Zoology, Faculty of Sciences, University of Lomé 1BP: 1515 Lomé, Togo

Abstract

AbstractBackgroundMalaria is one of the major vector-borne diseases most sensitive to climatic change in West Africa. The prevention and reduction of malaria are very difficult in Benin due to poverty, economic insatiability the non-control of environmental determinants. This study aims to develop an intelligent outbreak malaria early warning model driven by monthly time series climatic variables in the Northern part of Benin.MethodsClimate data from nine rain gauge stations and malaria incidence data from 2009 to 2021 were extracted respectively from the National Meteorological Agency (METEO) and the Ministry of Health of Benin. Projected relative humidity and temperature were obtained from the coordinated regional downscaling experiment (CORDEX) simulations of the Rossby Centre Regional Atmospheric regional climate model(RCA4). A structural equation model was employed to determine the effects of climatic variables on malaria incidence. We developed an intelligent malaria early warning model to predict the prevalence of malaria. using machine learning by applying three machine learning algorithms including Linear regression (LiR), Support Vector Machine (SVM), and Negative Binominal Regression (NBiR).ResultsTwo ecological factors affect the incidence of malaria. Support vector machine regression is the best-performing algorithm, predicting 82% of malaria incidence in the Northern part of Benin. The projection reveals an increase in malaria incidence under RCP4.5 and RCP8.5 over the studied period.DiscussionThese results reveal that the northern part of Benin is at high risk of malaria and specific malaria control programs are urged to reduce the risk of malaria.

Publisher

Research Square Platform LLC

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