World Health Organization, Geneva, Switzerland.
Malar J. 2021 Dec 20;20(1):481. doi: 10.1186/s12936-021-03998-3.
Malaria causes more than 200 million cases of illness and 400,000 deaths each year across 90 countries. The World Health Organization (WHO) set a goal for 35 countries to eliminate malaria by 2030, with an intermediate milestone of 10 countries by 2020. In 2017, the WHO established the Elimination-2020 (E-2020) initiative to help countries achieve their malaria elimination goals and included 21 countries with the potential to eliminate malaria by 2020.
Across its three levels of activity (country, region and global), the WHO developed normative and implementation guidance on strategies and activities to eliminate malaria; provided technical support and subnational operational assistance; convened national malaria programme managers at three global meetings to share innovations and best practices; advised countries on strengthening their strategy to prevent re-establishment and preparing for WHO malaria certification; and contributed to maintaining momentum towards elimination through periodic evaluations, monitoring and oversight of progress in the E-2020 countries. Changes in the number of indigenous cases in E-2020 countries between 2016 and 2020 are reported, along with the number of countries that eliminated malaria and received WHO certification.
The median number of indigenous cases in the E-2020 countries declined from 165.5 (interquartile range [IQR] 14.25-563.75) in 2016 to 78 (IQR 0-356) in 2020; 12 (57%) countries reported reductions in indigenous cases over that period, of which 7 (33%) interrupted malaria transmission and maintained a malaria-free status through 2020 and 4 (19%) were certified malaria-free by the WHO. Two countries experienced outbreaks of malaria in 2020 and 2021 attributed, in part, to the COVID-19 pandemic.
Although the E-2020 countries contributed to the achievement of the 2020 global elimination milestone, the initiative highlights the difficulties countries face to interrupt malaria transmission, even when numbers of cases are very low. The 2025 global elimination milestone is now approaching, and the lessons learned, experience gained, and updated guidance developed during the E-2020 initiative will help serve the countries seeking to eliminate malaria by 2025.
疟疾每年在 90 个国家造成超过 2 亿例病例和 40 万人死亡。世界卫生组织(WHO)设定了一个目标,即在 2030 年前,35 个国家将消除疟疾,其中 2020 年的一个中期目标是 10 个国家。2017 年,世卫组织设立了 Elimination-2020(E-2020)倡议,以帮助各国实现消除疟疾的目标,并将 21 个有可能在 2020 年前消除疟疾的国家纳入其中。
世卫组织在其三个活动层面(国家、区域和全球)制定了消除疟疾战略和活动的规范和实施指南;提供技术支持和国家以下层面的业务援助;召开了三次全球会议,召集国家疟疾规划管理人员分享创新和最佳做法;就加强预防疟疾重新出现的战略和准备接受世卫组织疟疾认证向各国提供咨询;通过定期评估、监测和监督 E-2020 国家的进展,为消除疟疾的势头提供支持。报告了 E-2020 国家 2016 年至 2020 年期间本地病例数量的变化,以及消除疟疾和获得世卫组织认证的国家数量。
E-2020 国家的本地病例中位数从 2016 年的 165.5(四分位距 [IQR] 14.25-563.75)降至 2020 年的 78(IQR 0-356);在此期间,有 12 个(57%)国家报告本地病例减少,其中 7 个(33%)中断了疟疾传播,并在 2020 年保持无疟疾状态,4 个(19%)获得了世卫组织的无疟疾认证。2020 年和 2021 年,有两个国家发生了疟疾疫情,部分原因是 COVID-19 大流行。
尽管 E-2020 国家为实现 2020 年全球消除疟疾目标做出了贡献,但该倡议突显了即使病例数量非常低,各国在中断疟疾传播方面所面临的困难。现在,2025 年全球消除疟疾目标即将到来,在 E-2020 倡议期间获得的经验教训、取得的经验和更新的指导,将有助于支持那些寻求在 2025 年前消除疟疾的国家。