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. 2021 Jan 19;18(2):840.
doi: 10.3390/ijerph18020840.

Evolution of Malaria Incidence in Five Health Districts, in the Context of the Scaling Up of Seasonal Malaria Chemoprevention, 2016 to 2018, in Mali

Aissata Sacko  1 , Issaka Sagara  1   2   3 , Ibrahima Berthé  4 , Modibo Diarra  2 , Mady Cissoko  2   3   5 , Souleymane S Diarra  1 , Drissa Coulibaly  2 , Moussa Sanogo  1 , Alassane Dicko  1   2
Affiliations

Evolution of Malaria Incidence in Five Health Districts, in the Context of the Scaling Up of Seasonal Malaria Chemoprevention, 2016 to 2018, in Mali

Aissata Sacko et al. Int J Environ Res Public Health. .

Abstract

Context: In Mali, malaria transmission is seasonal, exposing children to high morbidity and mortality. A preventative strategy called Seasonal Malaria Chemoprevention (SMC) is being implemented, consisting of the distribution of drugs at monthly intervals for up to 4 months to children between 3 and 59 months of age during the period of the year when malaria is most prevalent. This study aimed to analyze the evolution of the incidence of malaria in the general population of the health districts of Kati, Kadiolo, Sikasso, Yorosso, and Tominian in the context of SMC implementation.

Methods: This is a transversal study analyzing the routine malaria data and meteorological data of Nasa Giovanni from 2016 to 2018. General Additive Model (GAM) analysis was performed to investigate the relationship between malaria incidence and meteorological factors.

Results: From 2016 to 2018, the evolution of the overall incidence in all the study districts was positively associated with the relative humidity, rainfall, and minimum temperature components. The average monthly incidence and the relative humidity varied according to the health district, and the average temperature and rainfall were similar. A decrease in incidence was observed in children under five years old in 2017 and 2018 compared to 2016.

Conclusion: A decrease in the incidence of malaria was observed after the SMC rounds. SMC should be applied at optimal periods.

Keywords: Mali; Seasonal Malaria Chemoprevention; incidence; malaria.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Monthly malaria incidence by health district from 2016 to 2018.
Figure 2
Figure 2
Average monthly malaria incidence by health district from 2016 to 2018 for 10,000 pers.
Figure 3
Figure 3
Graph of PCA with the contribution of meteorological variables: (a) Sahel zone; (b) Sudano-Guinean zone.
See this image and copyright information in PMC

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