Progress towards the eradication of Tsetse from the Loos islands, Guinea
Progress towards the eradication of Tsetse from the Loos islands, Guinea
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DOI：
10.1186/1756-3305-4-18
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发表时间：
2011-02-10
影响因子：
3.2
通讯作者：
Solano, Philippe
中科院分区：
文献类型：
--
作者：
Kagbadouno, Moise S.;Camara, Mamadou;Solano, Philippe
背景：冈比亚采采蝇是昏睡病(人类非洲锥虫病-HAT)的主要媒介，在西非，特别是在几内亚沿海地区，目前这种疾病非常活跃。卢斯群岛构成了一个距离几内亚大陆约5公里的小群岛，在那里，冈比亚G·P·冈比亚被Fotoba、Room和Kassa三个主要岛屿的居民视为一种滋扰和潜在的疾病媒介。几内亚针对HAT的国家控制方案已决定根除卢斯群岛的采采症，以可持续地保护人类和经济活动。在基线数据收集后，2006年开始在这些岛屿上控制采采率。结果：控制行动前，卡萨岛、Room岛和Fotoba岛的开始密度分别为10只/天、3只/只和1只/天，但到2010年7月，所有用于监测的哨兵捕捉器都没有捕捉到采采蝇。当多种控制方法(浸泡诱捕器和靶标ITT、选择性地面喷洒、猪皮表面杀虫剂处理和猪圈周围浸渍栅栏)结合使用时，减灭率较快，而当ITT作为唯一控制方法时，减少率较慢。结论：100%的抑制是一个有希望的步骤，但冈比亚按蚊在群岛上仍可能以很低的、无法检测的密度发生。下一步将包括评估采采赛消失的0.05可能性，以确定临时根除状态。在这些行动中，一个关键因素是当地工作队和当地社区的参与，没有他们，这些成果是不可能取得的。这项工作将继续进行，这要归功于有关合作伙伴的努力，直到宣布卢斯岛上的采采病完全根除为止。
Background: The tsetse fly Glossina palpalis gambiensis is the main vector of sleeping sickness (Human African Trypanosomiasis - HAT) in West Africa, in particular in littoral Guinea where this disease is currently very active. The Loos islands constitute a small archipelago some 5 km from mainland Guinea, where G. p. gambiensis is well known as a nuisance and potential disease vector by inhabitants of the three main islands, Fotoba, Room, and Kassa. The National Control Program against HAT of Guinea has decided to eradicate tsetse in Loos islands in order to sustainably protect humans and economic activities. After baseline data collection, tsetse control began on the islands in 2006. On each of the three islands a specific combination of control methods was implemented according to the entomological situation found.Results: Starting densities before control operations were 10, 3 and 1 tsetse/trap/day in Kassa, Room and Fotoba respectively, but by July 2010, tsetse were no longer caught in any of the sentinel traps used for monitoring. The reduction rate was faster where several control methods were implemented as a combination (impregnated traps and targets ITT, selective groundspraying, epicutaneous insecticide treatment of pigs, and impregnated fences around pig pens), whereas it was slower when ITT were used as the only control method.Conclusions: This 100% suppression is a promising step in the eradication process, but G. p. gambiensis may still occur at very low, undetectable, densities on the archipelago. Next step will consist in assessing a 0.05 probability of tsetse absence to ascertain a provisional eradication status. Throughout these operations, a key factor has been the involvement of local teams and local communities without whom such results would be impossible to obtain. Work will continue thanks to the partners involved until total eradication of the tsetse on Loos islands can be declared.