Department of Environmental and Occupational Health, Colorado School of Public Health, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA.
National Institute for Human Resilience, University of Colorado, Colorado Springs, CO, USA.
Acta Trop. 2020 Sep;209:105468. doi: 10.1016/j.actatropica.2020.105468. Epub 2020 May 19.
Arboviruses transmitted by Aedes mosquitoes are a growing global concern; however, there remain large gaps in surveillance of both arboviruses and their vectors in West Africa. We reviewed over 50 years of data including outbreak reports, peer-reviewed literature, and prior data compilations describing Zika, dengue, and chikungunya, and their vectors in West Africa. Large outbreaks of dengue, Zika, and chikungunya have recently occurred in the region with over 27,000 cases of Aedes-borne disease documented since 2007. Recent arboviral outbreaks have become more concentrated in urban areas, and Aedes albopictus, recently documented in the region, has emerged as an important vector in several areas. Seroprevalence surveys suggest reported cases are a gross underestimate of the underlying arboviral disease burden. These findings indicate a shifting epidemiology of arboviral disease in West Africa and highlight a need for increased research and implementation of vector and disease control. Rapid urbanization and climate change may further alter disease patterns, underscoring the need for improved diagnostic capacity, and vector and disease surveillance to address this evolving health challenge.
按蚊传播的虫媒病毒日益引起全球关注；然而，在西非，虫媒病毒及其媒介的监测仍存在很大差距。我们查阅了 50 多年的数据，包括疫情报告、同行评议文献和先前的数据汇编，这些数据描述了西半球的寨卡病毒、登革热病毒、基孔肯雅热病毒及其媒介。该地区最近发生了大规模的登革热、寨卡病毒和基孔肯雅热疫情，自 2007 年以来，已记录了超过 27000 例蚊媒疾病病例。最近的虫媒病毒疫情在城市地区更为集中，该地区最近记录的白纹伊蚊已成为几个地区的重要媒介。血清流行率调查表明，报告的病例严重低估了潜在的虫媒病毒疾病负担。这些发现表明，西半球虫媒病毒疾病的流行病学正在发生变化，并强调需要加强研究和实施病媒控制和疾病控制。快速城市化和气候变化可能进一步改变疾病模式，因此需要提高诊断能力，加强病媒和疾病监测，以应对这一不断演变的健康挑战。
