Ismail Nazir, Ismail Farzana, Omar Shaheed V, Blows Linsay, Gardee Yasmin, Koornhof Hendrik, Onyebujoh Philip C
Center for Tuberculosis, National Institute for Communicable Diseases, National Health Laboratory Services, Johannesburg, South Africa.
Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa.
Afr J Lab Med. 2018 Dec 6;7(2):781. doi: 10.4102/ajlm.v7i2.781. eCollection 2018.
The World Health Organization End TB Strategy targets for 2035 are ambitious and drug resistant tuberculosis is an important barrier, particularly in Africa, home to over a billion people.
We sought to review the current status of drug resistant tuberculosis in Africa and highlight key areas requiring improvement.
Available data from 2016 World Health Organization global tuberculosis database were extracted and analysed using descriptive statistics.
The true burden of drug resistant tuberculosis on the continent is poorly described with only 51% of countries having a formal survey completed. In the absence of this data, modelled estimates were used and reported 92 629 drug resistant tuberculosis cases with 42% of these occurring in just two countries: Nigeria and South Africa. Of the cases estimated, the majority of patients (70%) were not notified, representing 'missed cases'. Mortality among patients with multi-drug resistant tuberculosis was 21%, and was 43% among those with extensively drug resistant tuberculosis. Policies on the adoption of new diagnostic tools was poor and implementation was lacking. A rifampicin result was available for less than 10% of tuberculosis cases in 23 of 47 countries. Second-line drug resistance testing was available in only 60% of countries. The introduction of the short multi-drug resistant tuberculosis regimen was a welcome development, with 40% of countries having implemented it in 2016. Bedaquiline has also been introduced in several countries.
Drug resistant tuberculosis is largely missed in Africa and this threatens prospects to achieve the 2035 targets. Urgent efforts are required to confirm the true burden of drug resistant tuberculosis in Africa. Adoption of new tools and drugs is essential if the 2035 targets are to be met.
世界卫生组织《终止结核病战略》设定的2035年目标雄心勃勃,而耐药结核病是一个重要障碍,在拥有超过10亿人口的非洲尤为如此。
我们试图回顾非洲耐药结核病的现状,并强调需要改进的关键领域。
从2016年世界卫生组织全球结核病数据库中提取可用数据,并使用描述性统计进行分析。
非洲大陆耐药结核病的真实负担描述不足,只有51%的国家完成了正式调查。在缺乏这些数据的情况下,使用了模型估计,报告有92629例耐药结核病病例,其中42%仅发生在两个国家:尼日利亚和南非。在估计出的病例中,大多数患者(70%)未被通报,即“漏报病例”。耐多药结核病患者的死亡率为21%,广泛耐药结核病患者的死亡率为43%。采用新诊断工具的政策不佳且缺乏实施。在47个国家中的23个国家,不到10%的结核病病例有利福平检测结果。只有60%的国家开展了二线耐药检测。短程耐多药结核病治疗方案的引入是一项值得欢迎的进展,2016年有40%的国家实施了该方案。贝达喹啉也已在多个国家引入。
非洲在很大程度上遗漏了耐药结核病,这威胁到实现2035年目标的前景。需要做出紧急努力来确认非洲耐药结核病的真实负担。若要实现2035年目标,采用新工具和药物至关重要。