Scenario analysis for programmatic tuberculosis control in Bangladesh: a mathematical modelling study.

Scenario analysis for programmatic tuberculosis control in Bangladesh: a mathematical modelling study.
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孟加拉国结核病控制方案分析:数学建模研究。

DOI:
10.1038/s41598-021-83768-y
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发表时间:
2021-02-23
期刊:
影响因子:
4.6
通讯作者:
McBryde ES
McBryde ES
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Kuddus MA;Meehan MT;Sayem MA;McBryde ES

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结核病是孟加拉国的一个主要公共卫生问题。尽管孟加拉国国家结核病控制计划正在实施全面扩展的结核病控制战略,但仍存在后勤挑战,而且疾病负担方面存在很大的不确定性。结核病的数学建模被认为是了解感染传播动态的最有效方法之一,可以量化包括孟加拉国在内的不同环境中的参数。在这项研究中,我们提出了一个双菌株的数学建模框架,以探讨药物敏感(DS)和多药耐药(MDR)结核病在孟加拉国的动态。我们使用孟加拉国2001年至2015年的DS和MDR-TB年度发病率数据校准了模型。此外,我们进行了模型参数的敏感性分析,发现这两种菌株的接触率有最大的影响,基本繁殖数和DS和MDR-TB,分别。制定了越来越有力的干预战略,在当地工作人员的帮助下确定了实际影响和覆盖面。我们模拟了2020年至2035年期间的情况。在此,我们预测了一系列干预方案下的DS和MDR-TB负担(以发病病例数和死亡率衡量),以确定哪种方案在减轻负担方面最有效。在单一干预战略中,加强病例检测是降低孟加拉国DS和MDR-TB发病率和死亡率最有效和最迅速的方法,GeneXpert检测在降低MDR-TB负担方面也非常有效。我们的研究结果还表明,将额外的干预措施同时结合起来会产生更大的效果,特别是对于耐多药结核病,我们估计需要适度的投资才能大幅减少,而DS-TB需要强大的持续投资。
Tuberculosis (TB) is a major public health problem in Bangladesh. Although the National TB control program of Bangladesh is implementing a comprehensive expansion of TB control strategies, logistical challenges exist, and there is significant uncertainty concerning the disease burden. Mathematical modelling of TB is considered one of the most effective ways to understand the dynamics of infection transmission and allows quantification of parameters in different settings, including Bangladesh. In this study, we present a two-strain mathematical modelling framework to explore the dynamics of drug-susceptible (DS) and multidrug-resistant (MDR) TB in Bangladesh. We calibrated the model using DS and MDR-TB annual incidence data from Bangladesh from years 2001 to 2015. Further, we performed a sensitivity analysis of the model parameters and found that the contact rate of both strains had the largest influence on the basic reproduction numbers and of DS and MDR-TB, respectively. Increasingly powerful intervention strategies were developed, with realistic impact and coverage determined with the help of local staff. We simulated for the period from 2020 to 2035. Here, we projected the DS and MDR-TB burden (as measured by the number of incident cases and mortality) under a range of intervention scenarios to determine which of these scenario is the most effective at reducing burden. Of the single-intervention strategies, enhanced case detection is the most effective and prompt in reducing DS and MDR-TB incidence and mortality in Bangladesh and that with GeneXpert testing was also highly effective in decreasing the burden of MDR-TB. Our findings also suggest combining additional interventions simultaneously leads to greater effectiveness, particularly for MDR-TB, which we estimate requires a modest investment to substantially reduce, whereas DS-TB requires a strong sustained investment.
DOI: 10.1097/maj.0b013e31825d32c6
发表时间: 2013-02
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DOI: 10.3934/mbe.2016017
发表时间: 2016-08-01
影响因子: 2.6
作者:
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