Aissata Sacko1, Issaka Sagara1,2,3, Ibrahima Berthé4, Modibo Diarra2, Mady Cissoko2,3,5, Souleymane S Diarra1, Drissa Coulibaly2, Moussa Sanogo1, Alassane Dicko1,2. 1. Faculty of Medicine and Odonto-Stomatology, Department of Public Health, University of Sciences, Techniques and Technology of Bamako, Bamako BP 1805, Mali. 2. Malaria Research and Training Center, Department of Epidemiology of Parasitic Diseases, Faculty of Pharmacy, University of Sciences Techniques and Technology of Bamako, Bamako BP 1805, Mali. 3. Aix Marseille Université (AMU), Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de recherche pour le développement (IRD), 13005 Marseille, France. 4. Direction Générale de la Santé et Hygiène Publique, Sous-Direction surveillance épidémiologique, Bamako BP 233, Bamako, Mali. 5. Direction Régionale de la Santé de Tombouctou, Tombouctou BP 59, Mali.
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.
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.
Authors: Jae-Won Park; Hae-Kwan Cheong; Yasushi Honda; Mina Ha; Ho Kim; Joel Kolam; Kasis Inape; Ivo Mueller Journal: Environ Health Toxicol Date: 2016-02-25