消灭采采蝇种群后,塞内加尔一个主要畜牧生产区消除了动物锥虫病。

IF 2.3 2区 医学 Q2 PARASITOLOGY
Parasite Pub Date : 2024-01-01 Epub Date: 2024-03-06 DOI:10.1051/parasite/2024010
Momar Talla Seck, Assane Guèye Fall, Mamadou Ciss, Mame Thierno Bakhoum, Baba Sall, Adji Marème Gaye, Geoffrey Gimonneau, Mireille Djimangali Bassène, Renaud Lancelot, Marc J B Vreysen, Jérémy Bouyer
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引用次数: 0

摘要

非洲动物锥虫病(AAT)是塞内加尔尼亚耶斯地区发展集约化畜牧生产系统的主要疾病制约因素之一,该地区位于达喀尔和圣路易之间的沿海地带,宽 30 公里。为了克服这一制约因素,塞内加尔政府启动了一项全地区害虫综合治理计划,将化学防治策略与昆虫不育技术相结合,以消灭该地区的采采蝇 Glossina palpalis gambiensis Vanderplank, 1949(双翅目,Glossinidae)种群。该项目采用分阶段有条件的方法实施,目标区域被划分为三个区块,依次进行处理。本研究旨在评估该计划实施期间锥虫流行的时间动态。2009 年至 2022 年期间,共采集了 4359 份牛的血液样本,并使用水溶液和 ELISA 技术以及 2020 年以来的 PCR 测试对样本进行了锥虫筛查。第一区块的血清流行率从 2009 年的 18.9%(95%CI:11.2-26.5)降至 2017-2022 年的 0%,第二区块的血清流行率从 2010 年的 92.9%(95%CI:88.2-97)降至 2021 年的 0%。寄生虫学和血清学数据证实了昆虫学监测结果,即 G. p. gambiensis 的种群很有可能已在 Niayes 被根除,并且在施药地区的急性疟原虫传播已被阻断。这些结果表明所采用的方法是有效的,并表明可以通过建立一个无冈比亚金龟子区来可持续地根除急性疟原虫。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Animal trypanosomosis eliminated in a major livestock production region in Senegal following the eradication of a tsetse population.

African animal trypanosomosis (AAT) was one of the main disease-related constraints to the development of intensive livestock production systems in the Niayes region of Senegal, a 30 km wide strip of land along the coast between Dakar and Saint-Louis. To overcome this constraint, the Government of Senegal initiated an area-wide integrated pest management programme combining chemical control tactics with the sterile insect technique to eradicate a population of the tsetse fly Glossina palpalis gambiensis Vanderplank, 1949 (Diptera, Glossinidae) in this area. The project was implemented following a phased conditional approach, and the target area was divided into three blocks treated sequentially. This study aims to assess the temporal dynamics of the prevalence of Trypanosoma spp. during the implementation of this programme. Between 2009 and 2022, 4,359 blood samples were collected from cattle and screened for trypanosomes using both the buffy coat and ELISA techniques, and PCR tests since 2020. The seroprevalence decreased from 18.9% (95%CI: 11.2-26.5) in 2009 to 0% in 2017-2022 in block 1, and from 92.9% (95%CI: 88.2-97) in 2010 to 0% in 2021 in block 2. The parasitological and serological data confirm the entomological monitoring results, i.e., that there is a high probability that the population of G. p. gambiensis has been eradicated from the Niayes and that the transmission of AAT has been interrupted in the treated area. These results indicate the effectiveness of the adopted approach and show that AAT can be sustainably removed through the creation of a zone free of G. p. gambiensis.

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来源期刊
Parasite
Parasite 医学-寄生虫学
CiteScore
5.50
自引率
6.90%
发文量
49
审稿时长
3 months
期刊介绍: Parasite is an international open-access, peer-reviewed, online journal publishing high quality papers on all aspects of human and animal parasitology. Reviews, articles and short notes may be submitted. Fields include, but are not limited to: general, medical and veterinary parasitology; morphology, including ultrastructure; parasite systematics, including entomology, acarology, helminthology and protistology, and molecular analyses; molecular biology and biochemistry; immunology of parasitic diseases; host-parasite relationships; ecology and life history of parasites; epidemiology; therapeutics; new diagnostic tools. All papers in Parasite are published in English. Manuscripts should have a broad interest and must not have been published or submitted elsewhere. No limit is imposed on the length of manuscripts, but they should be concisely written. Papers of limited interest such as case reports, epidemiological studies in punctual areas, isolated new geographical records, and systematic descriptions of single species will generally not be accepted, but might be considered if the authors succeed in demonstrating their interest.
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