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Prescribed yearly mid-dry season fire is generally used in the Guinean savanna (a humid savanna of West Africa) as a vegetation management tool. Despite this fire, bush encroachment can be observed due to climate change and high sapling recovery rates with increasing CO2 emissions. There is therefore a need to analyze other fire seasons. We analyzed fire behavior during a 5-year field fire in the Guinean savanna of Lamto reserve in Ivory Coast. Early (EDS), mid (MDS), and late (LDS) dry season fires were tested. Nine 0.5 ha plots were burnt annually to determine the rate of spread, fire intensity and the residence time above 60 °C. Fuel characteristics and weather conditions were measured to assess their impact on fire behavior. Recruitment from resprout to adult tree stage were assessed for an estimation of these fires’ severity. Understory grass height, fuel load, and moisture content had greater values in EDS than in MDS and LDS. The rate of spread and intensity of both MDS and of LDS were greater than those of EDS fires. The best predictors for fire behavior were fuel moisture content and air humidity. In dry conditions, fires were faster and more intense. With climate change predicting increasingly longer and drier periods, we expect more and more intense fires. A longer time of exposure to lethal temperatures (>60 °C) and the phenological state of trees in the late dry season explains the higher severity of this fire (there was no recruitment to adult stage under LDS fire). In some years, LDS helped to reduce bush encroachment in the subject region. This data provides important insights into fire behavior and its severity in the Guinean savanna, informing fire management policies and procedures.

In Côte d'Ivoire, a high number of exposed people abandoned the Post-Exposure Prophylaxis. Our objective was to determine the factors influencing the adherence to the Post-Exposure Prophylaxis at the anti-rabies Center of Bouaké. Methods: we carried out an ambispective study, based on the review of patient records from January 2014 to December 2015 and on contacting all patients by phone.Results: A total of 1487 people at risk of rabies infection received Post-Exposure Prophylaxis, whom 54, 4% abandoned their treatment. The majority of the victims was under of 15 years old (56, 8%) and was male (59, 1%). Lesions were predominantly of category III (55, 3%) and 2, 3% was located on the head. In 87% of cases, the biting animal was not properly vaccinated and 66% of the victims consulted within 48 hours after exposure. Among the exposed subjects, 54% had discontinued treatment; the main reasons were cost (76%) and neglect (28%) and it was influenced by household's average income RR=0,741; IC95%= [0,353-0,838].Conclusion: Vaccine prevention, the only effective way to prevent human rabies, faces to high drop-out rate of post-exposure prophylaxis. The main obstacles to the correct observance of this treatment are related on the one hand to the distance of care structures for the rural populations and on the other hand to financial inaccessibility.Keywords : Rabies, Post-exposure prophylaxis, Abandonment, associated factors

Des hybrides ameliores de cocotiers grands ont ete crees par la Station de recherche Marc Delorme en vue de satisfaire les preferences des grosses noix des acteurs de la filiere cocotier. Cependant ils demeurent encore peu etudies. Le present travail evalue les caracteristiques physicochimiques de l’eau des noix matures de ces nouveaux hybrides en vue d’en proposer des voies de valorisation. Les travaux portent sur des noix âgees de treize mois (rang 25) d’hybrides de cocotiers grands GPY + x GOA + , GPY + x GRL + et GRL + x GOA + en comparaison avec l’hybride PB121 + , pris comme temoin. La masse des noix entieres et de l’eau de coco ont ete determines moins de 24 h apres la recolte des noix de coco. Puis des echantillons d’eau de coco ont ete preleves et conserves a -15 °C avant leurs caracterisations. Les resultats ont montre que l’eau de coco mature est plus abondante et plus acide chez les hybrides ameliores de cocotiers grands que chez le PB121 + . Parmi les trois hybrides grands ameliores, GRL + x GOA + fournit l’eau de coco mature la plus pourvue en cendres (0,49%). Les hybrides GPY + x GOA + et GPY + x GRL + renferment plus de sucres (29,37 et 28,09 mg/ml) et de polyphenols (58,11 et 65,49 ppm). Il ressort de ces etudes que l’eau des noix matures de ces hybrides pourrait etre utilisee pour la production d’alcool ethylique et de vinaigre. Mots cles : Valorisation, eau de coco, caracteristiques, vinaigre, alcool, Cote d’Ivoire