Case incidence: In 2020, the globalmalariacase incidence rate was 59 cases per 1000 people at risk against a target of 35 — putting it off track by 40%.
Mortality rate: In 2020, the global mortality rate was 15.3 deaths per 100 000 people at risk against a target of 8.9 — putting it off track by 42%.
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方法变化
Methodology changes
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在今年的报告中，疟疾病例和死亡人数估计有两个新的值得注意的考虑因素。
In this year’s report, there are two new and noteworthy considerations in the estimation of malaria cases and deaths.
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首先，应用了一个新的疟疾死因分数，影响到撒哈拉以南非洲32个国家。
First, a new cause of death fraction for malaria was applied, affecting 32 countries in sub-Saharan Africa.
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与以前的分析相比，新方法使2000-2020年整个期间5岁以下儿童疟疾死亡率估计值有所提高。
The new methodology resulted in higher point estimates for malaria deaths in children under 5 years of age across the entire period 2000–2020, compared with previous analyses.
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例如，新方法发现，2019年全球疟疾死亡人数为55.8万人，而之前的估计为40.9万人。
For example, the new methodology found that there were 558 000 global malariadeaths in 2019, compared to the prior estimate of 409 000 deaths.
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更多关于世界卫生组织方法论的信息可以在最近发表在《柳叶刀-儿童与青少年健康》上的一篇论文中找到。
More information on the WHO-wide methodology can be found in a paperrecently published in The Lancet Child & Adolescent Health.
Second, the estimates for both cases and deaths reflect the impact of disruptions during the COVID-19 pandemic, which led to an increase in malaria burden in 2020 compared with 2019 in most moderate and high transmission countries, especially in sub-Saharan Africa.