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1. The efficacy of attractive targeted sugar baits in reducing malaria vector abundance in low-endemicity settings of northwest Mali

Author

Traore, Mohamed M., Junnila, Amy, Traore, Sekou F., Doumbia, Seydou, Revay, Edita E., Schlein, Yosef, Yakovlev, Roman V., Saldaitis, Aidas, Cui, Liwang, Petrányi, Gergely, Xue, Rui-De, Prozorov, Alexey M., Prozorova, Tatiana A., Kone, Aboubakr S., Sogoba, Nafomon, Diakite, Mahamadou, Vontas, John, Beier, John C., and Müller, Günter C.

Published
2024
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3. Effect of a fifth round of seasonal malaria chemoprevention in children aged 5–14 years in Dangassa, an area of long transmission in Mali

Author

Konate, Drissa, Diawara, Sory I, Sogoba, Nafomon, Shaffer, Jeff, Keita, Bourama, Cisse, Abdourhamane, Sanogo, Ibrahim, Dicko, Ilo, Guindo, Merepen dite Agnes, Balam, Saidou, Traore, Abdouramane, Kante, Salimata, Dembele, Assitan, Kasse, Fatoumata, Denou, Larissa, Diakite, Seidina AS, Traore, Karim, Thiam, Sidibe M'Baye, Sanogo, Vincent, Toure, Mahamoudou, Diarra, Ayouba, Agak, George W, Doumbia, Seydou, and Diakite, Mahamadou

Subjects
Epidemiology, Health Sciences, Prevention, Infectious Diseases, Rare Diseases, Malaria, Vector-Borne Diseases, Infection, Good Health and Well Being, Malaria incidence, SMC, Fifth round, Older children, Mali, Microbiology, Medical Microbiology, Public Health and Health Services
Abstract

Despite a significant reduction in the burden of malaria in children under five years-old, the efficient implementation of seasonal malaria chemoprevention (SMC) at large scale remains a major concern in areas with long malaria transmission. Low coverage rate in the unattainable areas during the rainy season, a shift in the risk of malaria to older children and the rebound in malaria incidence after stopping drug administration are mainly reported in these areas. These gaps represent a major challenge in the efficient implementation of SMC measures. An open randomized study was conducted to assess the effect of a fifth additional round to current regime of SMC in older children living in Dangassa, a rural malaria endemic area. Poisson regression Model was used to estimate the reduction in malaria incidence in the intervention group compared to the control group including age groups (5-9 and 10-14 years) and the use of long-lasting insecticidal nets (LLINs; Yes or No) with a threshold at 5%. Overall, a downward trend in participation rate was observed from August (94.3%) to November (87.2%). In November (round 4), the risk of malaria incidence was similar in both groups (IRR = 0.66, 95%CI [0.35-1.22]). In December (round 5), a decrease of 51% in malaria incidence was observed in intervention group compared to control group adjusted for age groups and the use of LLINs (IRR = 0.49, 95%CI [0.26-0.94]), of which 17% of reduction is attributable to the 5th round in the intervention group. An additional fifth round of SMC resulted in a significant reduction of malaria incidence in the intervention group. The number of SMC rounds could be adapted to the local condition of malaria transmission.

Published
2023

4. Modeling clinical malaria episodes in different ecological settings in Mali, 2018-2022

Author

Kane, Fousseyni, Toure, Mahamoudou, Sogoba, Nafomon, Traore, Bourama, Keita, Moussa, Konate, Drissa, Diawara, Sory Ibrahim, Sanogo, Daouda, Keita, Soumba, Sanogo, Ibrahim, Doumbia, Cheick Oumar, Keïta, Bourama, Traoré, Amadou Sekou, Sissoko, Ibrahim, Coulibaly, Hamady, Thiam, Sidibé M'Baye, Barry, Alyssa, Shaffer, Jeffey G., Diakite, Mahamadou, and Doumbia, Seydou

Published
2024
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5. Spatial distribution of the chromosomal forms of anopheles gambiae in Mali

Author

Traoré Sékou F, Gosoniu Laura, Dolo Guimogo, Doumbia Seydou, Bagayoko Magaran M, Vounatsou Penelope, Sogoba Nafomon, Smith Thomas A, and Touré Yéya T

Subjects
Arctic medicine. Tropical medicine, RC955-962, Infectious and parasitic diseases, RC109-216
Abstract

Abstract Background Maps of the distribution of malaria vectors are useful tools for stratification of malaria risk and for selective vector control strategies. Although the distribution of members of the Anopheles gambiae complex is well documented in Africa, a continuous map of the spatial distribution of the chromosomal forms of An. gambiae s.s. is not yet available at country level to support control efforts. Methods Bayesian geostatistical methods were used to produce continuous maps of the spatial distribution of the chromosomal forms of An. gambiae s.s. (Mopti, Bamako, Savanna and their hybrids/recombinants) based on their relative frequencies in relation to climatic and environmental factors in Mali. Results The maps clearly show that each chromosomal form favours a particular defined eco-climatic zone. The Mopti form prefers the dryer northern Savanna and Sahel and the flooded/irrigated areas of the inner delta of the Niger River. The Savanna form favours the Sudan savanna areas, particularly the South and South-Eastern parts of the country (Kayes and Sikasso regions). The Bamako form has a strong preference for specific environmental conditions and it is confined to the Sudan savanna areas around urban Bamako and the Western part of Sikasso region. The hybrids/recombinants favour the Western part of the country (Kayes region) bordering the Republic of Guinea Conakry. Conclusion The maps provide valuable information for selective vector control in Mali (insecticide resistance management) and may serve as a decision support tool for the basis for future malaria control strategies including genetically manipulated mosquitoes.

Published
2008
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6. Seroprevalence of Arboviruses in a Malaria Hyperendemic Area in Southern Mali

Author

Bane, Sidy, primary, Rosenke, Kyle, additional, Feldmann, Friederike, additional, Meade-White, Kimberly, additional, Diawara, Sory, additional, Keita, Moussa, additional, Maiga, Ousmane, additional, Diakite, Mahamadou, additional, Safronetz, David, additional, Doumbia, Seydou, additional, Sogoba, Nafomon, additional, and Feldmann, Heinz, additional

Published
2024
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8. Ebola Virus IgG Seroprevalence in Southern Mali

Author

Bane, Sidy, Rosenke, Kyle, Maiga, Ousmane, Feldmann, Friederike, Meade-White, Kimberly, Callison, Julie, Safronetz, David, Sogoba, Nafomon, and Feldmann, Heinz

Subjects
Ebola virus infections -- Statistics, Immunoglobulin G -- Statistics, Health
Abstract

The West Africa Ebola virus disease (EVD) epidemic of 2013-2016 mainly affected the countries of Guinea, Sierra Leone, and Liberia; its cause was Ebola virus (EBOV; genus Ebolavirus, species Zaire [...]

Published
2021
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11. Co-infection of long-term carriers of Plasmodium falciparum with Schistosoma haematobium enhances protection from febrile malaria: a prospective cohort study in Mali.

Author

Doumbo, Safiatou, Tran, Tuan, Sangala, Jules, Li, Shanping, Doumtabe, Didier, Kone, Younoussou, Traoré, Abdrahamane, Bathily, Aboudramane, Sogoba, Nafomon, Coulibaly, Michel, Huang, Chiung-Yu, Ongoiba, Aissata, Kayentao, Kassoum, Diallo, Mouctar, Dramane, Zongo, Nutman, Thomas, Crompton, Peter, Doumbo, Ogobara, and Traore, Boubacar

Subjects
Adolescent, Adult, Animals, Child, Child, Preschool, Coinfection, Female, Humans, Infant, Malaria, Falciparum, Male, Mali, Plasmodium falciparum, Prospective Studies, Schistosoma haematobium, Schistosomiasis haematobia, Young Adult
Abstract

BACKGROUND: Malaria and schistosomiasis often overlap in tropical and subtropical countries and impose tremendous disease burdens; however, the extent to which schistosomiasis modifies the risk of febrile malaria remains unclear. METHODS: We evaluated the effect of baseline S. haematobium mono-infection, baseline P. falciparum mono-infection, and co-infection with both parasites on the risk of febrile malaria in a prospective cohort study of 616 children and adults living in Kalifabougou, Mali. Individuals with S. haematobium were treated with praziquantel within 6 weeks of enrollment. Malaria episodes were detected by weekly physical examination and self-referral for 7 months. The primary outcome was time to first or only malaria episode defined as fever (≥ 37.5 °C) and parasitemia (≥ 2500 asexual parasites/µl). Secondary definitions of malaria using different parasite densities were also explored. RESULTS: After adjusting for age, anemia status, sickle cell trait, distance from home to river, residence within a cluster of high S. haematobium transmission, and housing type, baseline P. falciparum mono-infection (n = 254) and co-infection (n = 39) were significantly associated with protection from febrile malaria by Cox regression (hazard ratios 0.71 and 0.44; P = 0.01 and 0.02; reference group: uninfected at baseline). Baseline S. haematobium mono-infection (n = 23) did not associate with malaria protection in the adjusted analysis, but this may be due to lack of statistical power. Anemia significantly interacted with co-infection (P = 0.009), and the malaria-protective effect of co-infection was strongest in non-anemic individuals. Co-infection was an independent negative predictor of lower parasite density at the first febrile malaria episode. CONCLUSIONS: Co-infection with S. haematobium and P. falciparum is significantly associated with reduced risk of febrile malaria in long-term asymptomatic carriers of P. falciparum. Future studies are needed to determine whether co-infection induces immunomodulatory mechanisms that protect against febrile malaria or whether genetic, behavioral, or environmental factors not accounted for here explain these findings.

Published
2014

12. Prognostics of multiple malaria episodes and nutritional status in children aged 6 to 59 months from 2013 to 2017 in Dangassa, Mali

Author

Keita, Soumba, primary, Thiero, Oumar, additional, Toure, Mahamoudou, additional, Kane, Fousseyni, additional, Keita, Moussa, additional, Konate, Drissa, additional, Sanogo, Daouda, additional, Diawara, Sory Ibrahim, additional, Coulibaly, Hamady, additional, Thiam, Sidibé M’Baye, additional, Sogoba, Nafomon, additional, Diakite, Mahamadou, additional, and Bamako, Mali, additional

Published
2023
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13. Modeling clinical malaria episodes in different ecological settings in Mali, 2018– 2022

Author

Kane, Fousseyni, primary, Toure, Mahamoudou, additional, Sogoba, Nafomon, additional, Traore, Bourama, additional, Keita, Moussa, additional, Konate, Drissa, additional, Diawara, Sory Ibrahim, additional, Sanogo, Daouda, additional, Keita, Soumba, additional, Sanogo, Ibrahim, additional, Doumbia, Cheick Oumar, additional, Keïta, Bourama, additional, Traoré, Amadou Sekou, additional, Sissoko, Ibrahim, additional, Coulibaly, Hamady, additional, Thiam, Sidibé M'Baye, additional, Barry, Alyssa, additional, Shaffer, Jeffey G., additional, Diakite, Mahamadou, additional, and Doumbia, Seydou, additional

Published
2023
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15. Isolation and genome sequencing of cytomegaloviruses from Natal multimammate mice (Mastomys natalensis)

Author

Hansen, Frederick, primary, Vučak, Matej, additional, Nichols, Jenna, additional, Hughes, Joseph, additional, Bane, Sidy, additional, Camiolo, Salvatore, additional, da Silva Filipe, Ana, additional, Ostermann, Eleonore, additional, Staliunaite, Laura, additional, Chan, Baca, additional, Mauch, Thekla, additional, Sogoba, Nafomon, additional, Streblow, Daniel N., additional, Voigt, Sebastian, additional, Oestereich, Lisa, additional, Ehlers, Bernhard, additional, Redwood, Alec J., additional, Feldmann, Heinz, additional, Brune, Wolfram, additional, Rosenke, Kyle, additional, Jarvis, Michael A., additional, and Davison, Andrew J., additional

Published
2023
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16. Resurgence of Malaria Transmission and Incidence after Withdrawal of Indoor Residual Spraying in the District of Koulikoro, Mali

Author

Keïta, Moussa, primary, Sissoko, Ibrahim, additional, Sogoba, Nafomon, additional, Konaté, Moussa, additional, Diawara, Sory Ibrahim, additional, Kané, Fousseyni, additional, Thiam, Salif, additional, Touré, Mahamoudou, additional, Konaté, Drissa, additional, Diakité, Mahamadou, additional, Beier, John C., additional, and Doumbia, Seydou, additional

Published
2023
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21. A comprehensive analysis of drug resistance molecular markers and Plasmodium falciparum genetic diversity in two malaria endemic sites in Mali

Author

Diakité, Seidina A. S., Traoré, Karim, Sanogo, Ibrahim, Clark, Taane G., Campino, Susana, Sangaré, Modibo, Dabitao, Djeneba, Dara, Antoine, Konaté, Drissa S., Doucouré, Fousseyni, Cissé, Amadou, Keita, Bourama, Doumbouya, Mory, Guindo, Merepen A., Toure, Mahamoudou B., Sogoba, Nafomon, Doumbia, Seydou, Awandare, Gordon A., and Diakité, Mahamadou

Published
2019
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22. Effect of a fifth round of seasonal malaria chemoprevention in children aged 5–14 years in Dangassa, an area of long transmission in Mali

Author

Konate, Drissa, primary, Diawara, Sory I., additional, Sogoba, Nafomon, additional, Shaffer, Jeffrey G., additional, Keita, Bourama, additional, Cisse, Abdourhamane, additional, Sanogo, Ibrahim, additional, Dicko, Ilo, additional, Guindo, Merepen dite Agnes, additional, Balam, Saidou, additional, Traore, Abdouramane, additional, Kante, Salimata, additional, Dembele, Assitan, additional, Kasse, Fatoumata, additional, Denou, Larissa, additional, Diakite, Seidina A.S., additional, Traore, Karim, additional, M'Baye Thiam, Sidibe, additional, Sanogo, Vincent, additional, Toure, Mahamoudou, additional, Diarra, Ayouba, additional, Agak, George W., additional, Doumbia, Seydou, additional, and Diakite, Mahamadou, additional

Published
2023
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23. The West Africa ICEMR Partnerships for Guiding Policy to Improve the Malaria Prevention and Control

Author

Doumbia, Seydou, primary, Toure, Mahamoudou, additional, Sogoba, Nafomon, additional, Alifrangis, Michael, additional, Diakite, Mahamadou, additional, Diarra, Ayouba, additional, Keita, Moussa, additional, Konaté, Drissa, additional, Diawara, Sory I., additional, Thiam, Sidibé M’Baye, additional, Keita, Soumba, additional, Tounkara, Moctar, additional, Cissé, Idrissa, additional, Sanogo, Vincent, additional, Magassa, Mahamadou H., additional, Barry, Alyssa E., additional, Winch, Peter J., additional, Marker, Hannah C., additional, Shaffer, Jeffrey G., additional, Traoré, Sékou F., additional, Müller, Günter C., additional, Cui, Liwang, additional, Beier, John C., additional, and Mihigo, Jules, additional

Published
2022
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24. A Decade of Progress Accelerating Malaria Control in Mali: Evidence from the West Africa International Center of Excellence for Malaria Research

Author

Doumbia, Seydou, primary, Sogoba, Nafomon, additional, Diakite, Mahamadou, additional, Toure, Mahamoudou, additional, Keita, Moussa, additional, Konaté, Drissa, additional, Diawara, Sory I., additional, Diarra, Ayouba, additional, Sanogo, Daouda, additional, Kane, Fousseyni, additional, Diakite, Seidina A. S., additional, Traore, Karim, additional, Thiam, Sidibé M’Baye, additional, Traoré, Sékou F., additional, Cisse, Idrissa, additional, Mihigo, Jules, additional, Coulibaly, Mamadou B., additional, Dabitao, Djeneba, additional, Alifrangis, Michael, additional, Barry, Alyssa E., additional, Müller, Günter C., additional, Beier, John C., additional, and Shaffer, Jeffrey G., additional

Published
2022
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27. A decade of progress accelerating malaria control in Mali:Evidence from the West Africa International Center of Excellence for Malaria Research

Author

Doumbia, Seydou, Sogoba, Nafomon, Diakite, Mahamadou, Toure, Mahamoudou, Keita, Moussa, Konaté, Drissa, Diawara, Sory I, Diarra, Ayouba, Sanogo, Daouda, Kane, Fousseyni, Diakite, Seidina A S, Traore, Karim, Thiam, Sidibé M'Baye, Traoré, Sékou F, Cisse, Idrissa, Mihigo, Jules, Coulibaly, Mamadou B, Dabitao, Djeneba, Alifrangis, Michael, Barry, Alyssa E, Müller, Günter C, Beier, John C, Shaffer, Jeffrey G, Doumbia, Seydou, Sogoba, Nafomon, Diakite, Mahamadou, Toure, Mahamoudou, Keita, Moussa, Konaté, Drissa, Diawara, Sory I, Diarra, Ayouba, Sanogo, Daouda, Kane, Fousseyni, Diakite, Seidina A S, Traore, Karim, Thiam, Sidibé M'Baye, Traoré, Sékou F, Cisse, Idrissa, Mihigo, Jules, Coulibaly, Mamadou B, Dabitao, Djeneba, Alifrangis, Michael, Barry, Alyssa E, Müller, Günter C, Beier, John C, and Shaffer, Jeffrey G

Abstract

This article highlights over a decade of signature achievements by the West Africa International Centers for Excellence in Malaria Research (WA-ICEMR) and its partners toward guiding malaria prevention and control strategies. Since 2010, the WA-ICEMR has performed longitudinal studies to monitor and assess malaria control interventions with respect to space-time patterns, vector transmission indicators, and drug resistance markers. These activities were facilitated and supported by the Mali National Malaria Control Program. Research activities included large-scale active and passive surveillance and expanded coverage of universal long-lasting insecticide-treated bed nets and seasonal malaria chemoprevention (SMC). The findings revealed substantial declines in malaria occurrence after the scale-up of control interventions in WA-ICEMR study sites. WA-ICEMR studies showed that SMC using sulfadoxine-pyrimethamine plus amodiaquine was highly effective in preventing malaria among children under 5 years of age. An alternative SMC regimen (dihydroartemisinin plus piperaquine) was shown to be potentially more effective and provided advantages for acceptability and compliance over the standard SMC regimen. Other findings discussed in this article include higher observed multiplicity of infection rates for malaria in historically high-endemic areas, continued antimalarial drug sensitivity to Plasmodium falciparum, high outdoor malaria transmission rates, and increased insecticide resistance over the past decade. The progress achieved by the WA-ICEMR and its partners highlights the critical need for maintaining current malaria control interventions while developing novel strategies to disrupt malaria transmission. Enhanced evaluation of these strategies through research partnerships is particularly needed in the wake of reported artemisinin resistance in Southeast Asia and East Africa.

Published
2022

28. The West Africa ICEMR partnerships for guiding policy to improve the malaria prevention and control

Author

Doumbia, Seydou, Toure, Mahamoudou, Sogoba, Nafomon, Alifrangis, Michael, Diakite, Mahamadou, Diarra, Ayouba, Keita, Moussa, Konaté, Drissa, Diawara, Sory I, Thiam, Sidibé M'Baye, Keita, Soumba, Tounkara, Moctar, Cissé, Idrissa, Sanogo, Vincent, Magassa, Mahamadou H, Barry, Alyssa E, Winch, Peter J, Marker, Hannah C, Shaffer, Jeffrey G, Traoré, Sékou F, Müller, Günter C, Cui, Liwang, Beier, John C, Mihigo, Jules, Doumbia, Seydou, Toure, Mahamoudou, Sogoba, Nafomon, Alifrangis, Michael, Diakite, Mahamadou, Diarra, Ayouba, Keita, Moussa, Konaté, Drissa, Diawara, Sory I, Thiam, Sidibé M'Baye, Keita, Soumba, Tounkara, Moctar, Cissé, Idrissa, Sanogo, Vincent, Magassa, Mahamadou H, Barry, Alyssa E, Winch, Peter J, Marker, Hannah C, Shaffer, Jeffrey G, Traoré, Sékou F, Müller, Günter C, Cui, Liwang, Beier, John C, and Mihigo, Jules

Abstract

The Mali National Malaria Control Program (NMCP) recently established a phased set of goals for eliminating malaria in Mali by 2030. Over the past decade, the scale-up of NMCP-led malaria control interventions has led to considerable progress, as evidenced by multiple malariometric indicators. The West Africa International Center of Excellence in Malaria Research (WA-ICEMR) is a multidisciplinary research program that works closely with the NMCP and its partners to address critical research needs for malaria control. This coordinated effort includes assessing the effectiveness of control interventions based on key malaria research topics, including immune status, parasite genetic diversity, insecticide and drug resistance, diagnostic accuracy, malaria vector populations and biting behaviors, and vectorial capacity. Several signature accomplishments of the WA-ICEMR include identifying changing malaria age demographic profiles, testing innovative approaches to improve control strategies, and providing regular reporting on drug and insecticide resistance status. The NMCP and WA-ICEMR partnership between the WA-ICEMR and the NMCP offers a comprehensive research platform that informs the design and implementation of malaria prevention and control research programs. These efforts build local expertise and capacity for the next generation of malaria researchers and guide local policy, which is crucial in sustaining efforts toward eliminating malaria in West Africa.

Published
2022

29. Effectiveness and Community Acceptance of Extending Seasonal Malaria Chemoprevention to Children 5 to 14 Years of Age in Dangassa, Mali

Author

Konaté, Drissa, primary, Diawara, Sory Ibrahim, additional, Keita, Bourama, additional, Sogoba, Nafomon, additional, Fayiçal, Mahamadou, additional, Guindo, Agnès, additional, Thiam, Sibe, additional, Traoré, Sékou Fantamady, additional, Shaffer, Jeffrey G., additional, Doumbia, Seydou, additional, and Diakité, Mahamadou, additional

Published
2022
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30. Vectorborne infections, Mali

Author

Safronetz, David, Sacko, Moussa, Sogoba, Nafomon, Rosenke, Kyle, Martellaro, Cynthia, Traore, Sekou, Cisse, Issa, Maiga, Ousmane, Boisen, Matt, Nelson, Diana, Oottamasathien, Darin, Millett, Molly, Garry, Robert F., Branco, Luis M., Doumbia, Seydou, Feldmann, Heinz, and Traore, Mamadou S.

Subjects
Vector-borne diseases -- Distribution, Public health administration -- Forecasts and trends, Market trend/market analysis, Company distribution practices, Health
Abstract

To the Editor: As in many West Africa nations, vectorbome diseases represent a substantial health burden in Mali; however, beyond malaria, the incidence and etiology of many of these diseases [...]

Published
2016

33. Establishment of a Genetically Confirmed Breeding Colony of Mastomys natalensis from Wild-Caught Founders from West Africa

Author

Safronetz, David, primary, Rosenke, Kyle, additional, Fischer, Robert J., additional, LaCasse, Rachel A., additional, Scott, Dana P., additional, Saturday, Greg, additional, Hanley, Patrick W., additional, Maiga, Ousmane, additional, Sogoba, Nafomon, additional, Schwan, Tom G., additional, and Feldmann, Heinz, additional

Published
2021
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34. Trends in Malaria Epidemiological Factors Following the Implementation of Current Control Strategies in Dangassa, Mali

Author

Toure, Mahamoudou, primary, Keita, Moussa, additional, Kane, Fousseyni, additional, Sanogo, Daouda, additional, Kante, Salim, additional, Konate, Drissa, additional, Diarra, Ayouba, additional, Sogoba, Nafomon, additional, Coulibaly, Mamadou B, additional, Traore, Sekou F, additional, Diakite, Mahamadou, additional, Shaffer, Jeffrey G., additional, Krogstad, Donald J, additional, and Doumbia, Seydou O., additional

Published
2021
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35. Predicting Malaria Transmission Dynamics in Dangassa, Mali: A Novel Approach Using Functional Generalized Additive Models

Author

Universidade de Santiago de Compostela. Departamento de Estatística, Análise Matemática e Optimización, Ateba, François Freddy, Febrero Bande, Manuel, Sagara, Issaka, Sogoba, Nafomon, Touré, Mahamoudou, Sanogo, Daouda, Diarra, Ayouba, Ngitah, Andoh Magdalene, Winch, Peter J., Shaffer, Jeffrey G., Krogstad, Donald J., Marker, Hannah C., Gaudart, Jean, Doumbia, Seydou, Universidade de Santiago de Compostela. Departamento de Estatística, Análise Matemática e Optimización, Ateba, François Freddy, Febrero Bande, Manuel, Sagara, Issaka, Sogoba, Nafomon, Touré, Mahamoudou, Sanogo, Daouda, Diarra, Ayouba, Ngitah, Andoh Magdalene, Winch, Peter J., Shaffer, Jeffrey G., Krogstad, Donald J., Marker, Hannah C., Gaudart, Jean, and Doumbia, Seydou

Abstract

Mali aims to reach the pre-elimination stage of malaria by the next decade. This study used functional regression models to predict the incidence of malaria as a function of past meteorological patterns to better prevent and to act proactively against impending malaria outbreaks. All data were collected over a five-year period (2012–2017) from 1400 persons who sought treatment at Dangassa’s community health center. Rainfall, temperature, humidity, and wind speed variables were collected. Functional Generalized Spectral Additive Model (FGSAM), Functional Generalized Linear Model (FGLM), and Functional Generalized Kernel Additive Model (FGKAM) were used to predict malaria incidence as a function of the pattern of meteorological indicators over a continuum of the 18 weeks preceding the week of interest. Their respective outcomes were compared in terms of predictive abilities. The results showed that (1) the highest malaria incidence rate occurred in the village 10 to 12 weeks after we observed a pattern of air humidity levels >65%, combined with two or more consecutive rain episodes and a mean wind speed <1.8 m/s; (2) among the three models, the FGLM obtained the best results in terms of prediction; and (3) FGSAM was shown to be a good compromise between FGLM and FGKAM in terms of flexibility and simplicity. The models showed that some meteorological conditions may provide a basis for detection of future outbreaks of malaria. The models developed in this paper are useful for implementing preventive strategies using past meteorological and past malaria incidence

Published
2020

36. Spatio-Temporal Dynamic of Malaria Incidence: A Comparison of Two Ecological Zones in Mali

Author

Universidade de Santiago de Compostela. Departamento de Estatística, Análise Matemática e Optimización, Ateba, François Freddy, Sagara, Issaka, Sogoba, Nafomon, Touré, Mahamoudou, Konaté, Drissa, Diawara, Sory Ibrahim, Diakité, Séidina Aboubacar Samba, Diarra, Ayouba, Coulibaly, Mamadou D., Dolo, Mathias, Dolo, Amagana, Sacko, Aissata, Thiam, Sidibe M’baye, Sissako, Aliou, Sangaré, Lansana, Diakité, Mahamadou, Koita, Ousmane A., Cissoko, Mady, Traore, Sékou Fantamady, Winch, Peter J., Febrero Bande, Manuel, Shaffer, Jeffrey G., Krogtad, Donald J., Marker, Hannah Catherine, Doumbia, Seydou, Gaudart, Jean, Universidade de Santiago de Compostela. Departamento de Estatística, Análise Matemática e Optimización, Ateba, François Freddy, Sagara, Issaka, Sogoba, Nafomon, Touré, Mahamoudou, Konaté, Drissa, Diawara, Sory Ibrahim, Diakité, Séidina Aboubacar Samba, Diarra, Ayouba, Coulibaly, Mamadou D., Dolo, Mathias, Dolo, Amagana, Sacko, Aissata, Thiam, Sidibe M’baye, Sissako, Aliou, Sangaré, Lansana, Diakité, Mahamadou, Koita, Ousmane A., Cissoko, Mady, Traore, Sékou Fantamady, Winch, Peter J., Febrero Bande, Manuel, Shaffer, Jeffrey G., Krogtad, Donald J., Marker, Hannah Catherine, Doumbia, Seydou, and Gaudart, Jean

Abstract

Malaria transmission largely depends on environmental, climatic, and hydrological conditions. In Mali, malaria epidemiological patterns are nested within three ecological zones. This study aimed at assessing the relationship between those conditions and the incidence of malaria in Dangassa and Koila, Mali. Malaria data was collected through passive case detection at community health facilities of each study site from June 2015 to January 2017. Climate and environmental data were obtained over the same time period from the Goddard Earth Sciences (Giovanni) platform and hydrological data from Mali hydraulic services. A generalized additive model was used to determine the lagged time between each principal component analysis derived component and the incidence of malaria cases, and also used to analyze the relationship between malaria and the lagged components in a multivariate approach. Malaria transmission patterns were bimodal at both sites, but peak and lull periods were longer lasting for Koila study site. Temperatures were associated with malaria incidence in both sites. In Dangassa, the wind speed (p = 0.005) and river heights (p = 0.010) contributed to increasing malaria incidence, in contrast to Koila, where it was humidity (p < 0.001) and vegetation (p = 0.004). The relationships between environmental factors and malaria incidence differed between the two settings, implying different malaria dynamics and adjustments in the conception and plan of interventions

Published
2020

38. Indoor and outdoor malaria transmission in two ecological settings in rural Mali: Implications for vector control

Author

KEITA, Moussa, primary, Doumbia, Sidy, additional, Sissoko, Ibrahim, additional, Touré, Mahamoudou, additional, Diawara, Sory Ibrahim, additional, Konaté, Drissa, additional, Sodio, Ambièlè Bernard, additional, Traoré, Sekou F., additional, Diakité, Mahamadou, additional, Doumbia, Seydou O., additional, Sogoba, Nafomon, additional, Krogstad, Donald J., additional, Shaffer, Jeffrey G., additional, and Coulibaly, Mamadou B. Coulibaly, additional

Published
2021
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39. Unique strain of Crimean-Congo hemorrhagic fever Virus, Mali

Author

Zivcec, Marko, Malga, Ousmane, Kelly, Ashley, Feldmann, Friederike, Sogoba, Nafomon, Schwan, Tom G., Feldmann, Heinz, and Safronetz, David

Subjects
Phylogeny -- Analysis, Disease transmission -- Methods, Crimean hemorrhagic fever -- Diagnosis -- Demographic aspects -- Genetic aspects, Health
Abstract

To the Editor: Crimean-Congo hemorrhagic fever (CCHF) is an acute viral infection that causes mild to severe hemorrhagic fever characterized by petechiae, ecchymosis, disseminated intravascular coagulation, and multi-organ failure (1). [...]

Published
2014

40. Indoor and outdoor malaria transmission in two ecological settings in rural Mali: Implications for vector control

Author

Keita, Moussa, primary, Doumbia, Sidy, additional, Sissoko, Ibrahim, additional, Touré, Mahamoudou, additional, Diawara, Sory Ibrahim, additional, Konaté, Drissa, additional, Sodio, Ambièlè Bernard, additional, Traoré, Sekou F., additional, Diakité, Mahamadou, additional, Doumbia, Seydou O., additional, Sogoba, Nafomon, additional, Krogstad, Donald J., additional, Shaffer, Jeffrey G., additional, and Coulibaly, Mamadou B. Coulibaly, additional

Published
2020
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41. Predicting Malaria Transmission Dynamics in Dangassa, Mali: A Novel Approach Using Functional Generalized Additive Models

Author

Ateba, François Freddy, primary, Febrero-Bande, Manuel, additional, Sagara, Issaka, additional, Sogoba, Nafomon, additional, Touré, Mahamoudou, additional, Sanogo, Daouda, additional, Diarra, Ayouba, additional, Magdalene Ngitah, Andoh, additional, Winch, Peter J., additional, Shaffer, Jeffrey G., additional, Krogstad, Donald J., additional, Marker, Hannah C., additional, Gaudart, Jean, additional, and Doumbia, Seydou, additional

Published
2020
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43. Spatio-Temporal Dynamic of Malaria Incidence: A Comparison of Two Ecological Zones in Mali

Author

Ateba, François Freddy, primary, Sagara, Issaka, additional, Sogoba, Nafomon, additional, Touré, Mahamoudou, additional, Konaté, Drissa, additional, Diawara, Sory Ibrahim, additional, Diakité, Séidina Aboubacar Samba, additional, Diarra, Ayouba, additional, Coulibaly, Mamadou D., additional, Dolo, Mathias, additional, Dolo, Amagana, additional, Sacko, Aissata, additional, Thiam, Sidibe M’baye, additional, Sissako, Aliou, additional, Sangaré, Lansana, additional, Diakité, Mahamadou, additional, Koita, Ousmane A., additional, Cissoko, Mady, additional, Traore, Sékou Fantamady, additional, Winch, Peter John, additional, Febrero-Bande, Manuel, additional, Shaffer, Jeffrey G., additional, Krogtad, Donald J., additional, Marker, Hannah Catherine, additional, Doumbia, Seydou, additional, and Gaudart, Jean, additional

Published
2020
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49. Seroprevalence of Rift Valley Fever Virus Antibodies in Cattle in Mali, 2005–2014

Author

Subudhi, Sonu, primary, Dakouo, Martin, additional, Sloan, Angela, additional, Stein, Derek R., additional, Grolla, Allen, additional, Jones, Shane, additional, Dibernardo, Antonia, additional, Rosenke, Kyle, additional, Sas, Miriam, additional, Traore, Abdalah, additional, Lindsay, Robbin, additional, Groschup, Martin H., additional, Misra, Vikram, additional, Feldmann, Heinz, additional, Sogoba, Nafomon, additional, Safronetz, David, additional, and Niang, Mamadou, additional

Published
2018
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50. Serosurvey of Crimean–Congo Hemorrhagic Fever Virus in Cattle, Mali, West Africa

Author

Maiga, Ousmane, primary, Kamissoko, Badian, additional, Traore, Abdallah, additional, Feldmann, Heinz, additional, Groschup, Martin H., additional, Safronetz, David, additional, Maiga, Hamidou Moussa, additional, Sangare, Modibo, additional, Mertens, Marc, additional, Sas, Miriam Andrada, additional, Rosenke, Kyle, additional, Traore, Sekou F., additional, Schwan, Tom G., additional, Niang, Mamadou, additional, and Sogoba, Nafomon, additional

Published
2017
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