scholarly journals Use of vector control to protect people from sleeping sickness in the focus of Bonon (Côte d’Ivoire)

2021 ◽  
Vol 15 (6) ◽  
pp. e0009404
Author(s):  
Dramane Kaba ◽  
Vincent Djohan ◽  
Djakaridja Berté ◽  
Bi Tra Dieudonné TA ◽  
Richard Selby ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Tsetse Flies ◽  
Cote D’Ivoire ◽  
Tsetse Control ◽  
Entomological Survey ◽  
Côte D'ivoire ◽  
The Mean ◽  
Monitoring Traps ◽  
Glossina Palpalis

Background Gambian human African trypanosomiasis (gHAT) is a neglected tropical disease caused by Trypanosoma brucei gambiense transmitted by tsetse flies (Glossina). In Côte d’Ivoire, Bonon is the most important focus of gHAT, with 325 cases diagnosed from 2000 to 2015 and efforts against gHAT have relied largely on mass screening and treatment of human cases. We assessed whether the addition of tsetse control by deploying Tiny Targets offers benefit to sole reliance on the screen-and-treat strategy. Methodology and principal findings In 2015, we performed a census of the human population of the Bonon focus, followed by an exhaustive entomological survey at 278 sites. After a public sensitization campaign, ~2000 Tiny Targets were deployed across an area of 130 km2 in February of 2016, deployment was repeated annually in the same month of 2017 and 2018. The intervention’s impact on tsetse was evaluated using a network of 30 traps which were operated for 48 hours at three-month intervals from March 2016 to December 2018. A second comprehensive entomological survey was performed in December 2018 with traps deployed at 274 of the sites used in 2015. Sub-samples of tsetse were dissected and examined microscopically for presence of trypanosomes. The census recorded 26,697 inhabitants residing in 331 settlements. Prior to the deployment of targets, the mean catch of tsetse from the 30 monitoring traps was 12.75 tsetse/trap (5.047–32.203, 95%CI), i.e. 6.4 tsetse/trap/day. Following the deployment of Tiny Targets, mean catches ranged between 0.06 (0.016–0.260, 95%CI) and 0.55 (0.166–1.794, 95%CI) tsetse/trap, i.e. 0.03–0.28 tsetse/trap/day. During the final extensive survey performed in December 2018, 52 tsetse were caught compared to 1,909 in 2015, with 11.6% (5/43) and 23.1% (101/437) infected with Trypanosoma respectively. Conclusions The annual deployment of Tiny Targets in the gHAT focus of Bonon reduced the density of Glossina palpalis palpalis by >95%. Tiny Targets offer a powerful addition to current strategies towards eliminating gHAT from Côte d’Ivoire.

Assessment of the effect of tsetse control on livestock productivity—a case study in northern Côte d'Ivoire

1996 ◽  
Vol 28 (1) ◽  
pp. 17-32 ◽  
Author(s):  
G.J. Rowlands ◽  
G.D.M. d'Ieteren ◽  
L. Coulibaly ◽  
P.A. Hecker ◽  
S.G.A. Leak ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
Tsetse Control ◽  
Côte D'ivoire ◽  
Livestock Productivity

scholarly journals Epidémiologie de la trypanosomose animale africaine chez les bovins dans le département du Korhogo (Côte d’Ivoire)

2019 ◽  
Vol 72 (2) ◽  
pp. 83
Author(s):  
Ohoukou Marcel Boka ◽  
Essehin Enock Jocelin Boka ◽  
Grégoire Yapi Yapi ◽  
Seïdinan Ibrahima Traoré ◽  
Koffi Eric Kouamé
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Trypanosoma Vivax ◽  
Cote D’Ivoire ◽  
Glossina Palpalis Gambiensis ◽  
Côte D'ivoire ◽  
Glossina Palpalis

Une étude transversale a été menée dans le département du Korhogo, au nord de la Côte d’Ivoire, dans la zone agropastorale de Katégué, afin de mieux connaître l’épidémiologie de la trypanosomose animale africaine (TAA) chez les bovins. L’étude a associé une enquête entomologique et une enquête parasitologique et s’est déroulée en saison des pluies, de juillet à octobre 2015. Les prospections entomologiques ont été réalisées à l’aide de pièges Vavoua posés dans 30 sites aux biotopes divers. Pour l’enquête parasitologique, 407 bovins ont été prélevés sur la base d’un échantillonnage aléatoire stratifié sans distinction de race, de sexe et d’âge. Les résultats ont montré la présence d’un vecteur majeur de la TAA, la mouche tsé-tsé Glossina palpalis gambiensis, avec une densité apparente globale de 0,9 ± 3,0 glossines par piège par jour. Une seule espèce de trypanosome a été identifiée, Trypanosoma vivax, avec des prévalences relativement faibles aussi bien chez les glossines (11 ± 5 %) que chez les bovins (6 ± 2 %). Compte tenu de la gravité de la TAA chez les bovins, il s’avère nécessaire de sensibiliser les éleveurs du Korhogo, qui représente la principale zone d’élevage de bovins en Côte d’Ivoire, à la lutte contre les vecteurs de la TAA et à l’utilisation rationnelle des trypanocides.

scholarly journals Detection and identification of pathogenic trypanosome species in tsetse flies along the Comoé River in Côte d’Ivoire

Parasite ◽  
2015 ◽  
Vol 22 ◽  
pp. 18 ◽  
Author(s):  
Vincent Djohan ◽  
Dramane Kaba ◽  
Jean-Baptiste Rayaissé ◽  
Guiguigbaza-Kossigan Dayo ◽  
Bamoro Coulibaly ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Tsetse Flies ◽  
Trypanosome Species ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Detection And Identification

scholarly journals PROGRESSION OF AUTOANTIBODIES ANTI-GAD AND ANTI-IA2 IN TYPE 1A DIABETICS AGED OF 5 TO 21 YEARS IN CÔTE D’IVOIRE

2019 ◽  
Author(s):  
Aïssé Florence Judith Trébissou ◽  
Chiayé Claire Antoinette Yapo-Crezoit ◽  
Pascal Sibailly ◽  
Mamadou Sanogo ◽  
Amos Ankotché ◽  
...  
Keyword(s):  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cell Mass ◽  
Mean Value ◽  
Cote D’Ivoire ◽  
Gad Autoantibodies ◽  
A Value ◽  
Côte D'ivoire ◽  
Study Population ◽  
The Mean

AbstractBackgroundDiabetes autoantibodies are indispensable markers of diabetes classification.Objectiveto research autoantibodies anti-GAD and anti-IA2 in type 1A diabetics (T1D) aged 5 to 21 years, and to follow the progression of these autoantibodies in T1D patients, in Côte d’Ivoire.MethodsThe study population composed of 28 T1D patients, aged 5 to 21 years. T1D were followed up in two diabetes care centers in Abidjan district, Endocrinology departments of U.H.C of Yopougon and Treichville. Anti-GAD and anti-IA2 autoantibodies were researched by ELISA.Resultsanti-GAD and anti-IA2 were present in T1D and their siblings. After 2 years of diabetes, the titer of the anti-GAD autoantibodies increased to the mean value of 677.10 ± 353.20 IU / ml. Then, a fall of the anti-GAD autoantibodies until the cancellation was observed from the 8th to the 9th with values of 117 IU / ml to 10.14 IU / ml. Anti-IA2 autoantibodies fall at 9th year of diabetes with a value of 55.10 IU / ml.Conclusionanti-GAD and anti-IA2 autoantibodies persist after 9 years of diabetes, causing total destruction over time of the pancreatic β-cell mass in patients from Côte d’Ivoire, leading them to the death.

scholarly journals Calibration of Ångström-Prescott Coefficients to Estimate Global Solar Radiation in Côte d’Ivoire

2021 ◽  
Vol 17 (37) ◽  
pp. 24
Author(s):  
Maurice Aka Djoman ◽  
Wanignon Ferdinand Fassinou ◽  
Augustin Memeledje
Keyword(s):  
Solar Radiation ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Global Solar Radiation ◽  
Mean Bias Error ◽  
Bias Error ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
The Mean ◽  
Weather Stations

In this study, we used monthly mean daily global radiation data and sunshine durations from nine (9) weather stations in Côte d’Ivoire to determine the annual Ångström-Prescott coefficients. The calibration of the Ångström-Prescott equation has been done through linear regression using the least square method. The empirical coefficients obtained are utilized to predict the global horizontal irradiance over the nine (9) weather stations of interest. Estimated and measured global radiations were compared using the root mean square error (RMSE), the mean bias error (MBE), the mean absolute bias error (MABE), the mean percentage error (MPE), the Nash-Sutcliffe coefficient of efficiency (NSE), and the statistic -test (). The low values of the statistic t-test (from 0.10 to 1.07) and MPE (from -0.413 to 0.201) indicate a good performance of the model. The high values of the coefficient of determination R² (from 0.9776 to 0.9916) show a remarkable agreement between predicted and measured global solar radiations. This remark is also confirmed by the high values of NSE (from 0.8671 to 0.9819) closer to 1. The obtained values of MBE (from -18.17 to 8.69 kWh/m²), MABE (from 7.16 to 8.52 kWh/m²), and RMSE (69.1 to 167.3 kWh/m²) show a low deviation or bias between the estimate and the measurements. The Ångström-Prescott coefficients determinants are consistent and can be used to efficiently calculate the global horizontal irradiance. The model established can be recommended to be used in the nine (9) weather stations to accurately estimate global solar radiation on horizontal surfaces.

scholarly journals Caractérisation Biochimique De La Pulpe des Fruits Du Prunier Noir (Vitex Doniana) De La Côte d’Ivoire

2018 ◽  
Vol 14 (3) ◽  
pp. 252
Author(s):  
Kone Haffiata Soro ◽  
Kone Kisselmina Youssouf ◽  
Akaki Koffi David ◽  
Soro Doudjo ◽  
Elleingang Fattoh Eric ◽  
...  
Keyword(s):  
Vitamin C ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Low Cost ◽  
Climatic Zones ◽  
Cote D’Ivoire ◽  
Antioxidant Power ◽  
Côte D'ivoire ◽  
The Mean ◽  
Vitex Doniana

Black plum, the fruit of Vitex doniana, was harvested in three (3) regions belonging to different climatic zones in northern Côte d'Ivoire. Biochemical characteristics of the pulps were studied in order to highlight their nutritional potential and the variability of this composition according to study areas. From the conventional biochemical analyzes used, it appears that the fruit pulp is acidic and mostly made up of water. It is rich in sugars and has antioxidant power between 18.63 ± 0.02 and 35.54 ± 0.01 µg.mL -1. There is also the presence of polyphenols (166.67 ± 0.01 – 196.67 ± 0.01 mEq A.G./100g) and vitamin C (14.34 ± 0.02 – 15.05 ± 0.07 mg/100g). Ashes consist of minerals such as magnesium, potassium and calcium. The analysis of the variance showed that the mean of the parameters studied are significantly different from one region to the other, except the ash rate and vitamin C content. In view of its nutritional quality, black plum presents itself as an interesting fruit to be taken into account in the prevention of certain dietary imbalances and which can even intervene at low cost in the treatment of certain pathologies.

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