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Field Durability of Yorkool^(█) LN Nets in the Benin Republic

Advances in Entomology 2020年第1期8卷 72-92页

作者： I.B.Ahogni R.Y.Aikpon R.A.Osse J.F.Dagnon R.Govoetchan R.h.Attolou A.Agbevo R.Azondekon C.Z.Koukpo V.Gnanguenon h.sagbohan C.Kpanou F.Tokponon B.Akinro G.G.Padonou M.C.Akogbeto Centre de Recherche Entomologique de Cotonou(CREC) Ministry of HealthCotonouBenin Faculte des Sciences et Techniques(FAST) University of Abomey-Calavi(UAC)CotonouBenin Ecole Normale Superieure de Natitingou ENS Universite Nationale des SciencesTechnologiesIngenierie et Mathematiques(UNSTIM)NatitingouBenin Ecole de Gestion et d’Exploitation des Systemes d’Elevage(EGESE) Universite Nationale d’AgricultureKetouBenin President’s Malaria Initiative US Agency for International DevelopmentCotonouBenin CREC-London School of hygiene and Tropical Medecine(CREC-LShTM Collaborative Research Programme) CotonouBenin University of Wisconsin Milwaukee MilwaukeeUSA USAID PMI VectorLink project Abt associatesBujumburaBurundi National Malaria Control Program CotonouBenin

Context: Recent publications on WhO recommended methods for estimating the survival of LLINs are good guidelines for assessing the performance of long-lasting insecticidal nets (LLINs). Thus, this field trial study was undertaken to evaluate the durability of the Yorkool? LN mosquito net distributed during the 2017 campaign in Benin. Methods: The monitoring of Yorkool? LN nets was carried out in two districts (Djougou III and Barienou) in Djougou, department of Donga, northern Benin from October 2017 to March 2019. A representative sample of 250 households that had received the Yorkool? LN polyester LLINs during the 2017 campaign was selected in the rural and urban areas of each district and monitored for 6, 12 and 18 months. An evaluation of the survival of Yorkool? LN nets was conducted based on the rate of loss and physical condition of the surviving nets as measured by the proportional hole index (phI). Finally, the chemical efficacy of these LLINs during each period was determined using the WhO cone tests. Results: Survival of Yorkool? LN nets was similar in both rural and urban areas, although there was a difference in survival between the 6-month (95.3%), 12-month (89.7%), and 18-month follow-up periods (74.4%). A difference in survival was also observed between the NetCalc model (84%) compared to the Yorkool? LN nets of this study (74.4%). The attrition rate was 29.6% for LLINs at 18 months. Surprisingly, the physical integrity of the LLINs was minimally affected in the municipality. Indeed, the proportion of mosquito nets in good condition without a hole was 51.8% compared to 56.8% with a hole after 18 months. Only 7.8% of the LLINs in the two districts were damaged compared to 2.6% which needed to be replaced. The washing frequency, location of the LLINs and the frequency of use are some factors contributing to the appearance of the holes in LLINs. The bio-efficacy results of LLINs based on the cone test were good with mortality rates of 74%, 66%, 72% and

关键词： Durability Yorkool^(█) LN LLINs Survival Physical Integrity Bio-Efficacy

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Carbon Monoxide and Respiratory Disorders in Professional Female Fish Smokers at 2 Artisanal Sites in Benin

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Occupational Diseases and Environmental Medicine 2023年第4期11卷 175-186页

作者： Mênonli Adjobimey Ibrahim Mama Cissé Fintani Kaki Mariano Steven sagbohan Perside Fabien Gounongbe Rose Mikponhoue Ayélo Paul Vikkey hinson Research and Teaching Unit in Occupational and Environmental health FSS Cotonou Cotonou Benin Occupational health Service of the National University hospital of Pneumo-Phtisiology of Cotonou Cotonou Benin Faculty of Medicine Occupational Health Training and Research Unit Parakou Benin Inter-Faculty Centre for Environmental Training and Research for Sustainable Development University of Abomey-Calavi Abomey Calavi Benin

Introduction: The use of biomass for cooking is a very common practice in Africa and Benin, and is associated with exposure to organic pollutants. The aim of this study was to assess carbon monoxide exposure and respiratory disorders in women at artisanal fish-smoking sites. Methods: This was a cross-sectional study of women fish smokers at two artisanal fish-smoking sites in Benin. Recruitment was exhaustive. An interview using a respiratory questionnaire inspired by the Union questionnaire, spirometry and carbon monoxide (CO) measurement were carried out. Descriptive analysis and comparison of means using Student’s t-test with a threshold of p = 0.05 were performed. Results: The median age of the 81 people surveyed was 40, with an interquartile range (IQT) of [25 to 75]. The median duration of daily exposure to smoke was 6 h IQT [4, 7]. Of those surveyed, 64 (79.01%) were illiterate and 39 (48.24%) had been working for 20 years. CO levels at the start of activity varied from 89 to 145 ppm in one case and from 40 to 89 ppm in the other. Respiratory symptoms were present in 19 (23.46%);18 (22.22%) had mild airway impairment on spirometry. There was a statistically significant decrease between the mean values of peak expiratory flow (PEF), mean expiratory volume in seconds (FEV1) and forced vital capacity (FVC) before and after exposure to smoke. Conclusion: CO levels are high on fish smoking sites and respiratory problems are common. Improved working conditions are important for these women.

关键词： Respiratory Symptoms Spirometry Carbon Monoxide Fish Smoking Women

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