估计可活性的Mycobacterium结核病感染的全球负担:一个数学建模研究
Alvaro Schwalb1,2,3, Peter J Dodd4, Hannah M Rickman5,6
1TB Modelling Group, TB Centre, London School of Hygiene and Tropical Medicine, London, United Kingdom.
PLoS medicine
|February 5, 2026
概括
在全球范围内,近2.89亿人患有可活的Mycobacterium tuberculosis (Mtb) 感染,其中1.34亿人最近感染并面临结核病 (TB) 的高风险. 新的诊断对于识别需要结核病预防治疗的个体至关重要.
科学领域:
- 流行病学 流行病学
- 传染性疾病 传染性疾病
- 数学建模的数学建模
背景情况:
- 估计可活性的Mycobacterium结核病 (Mtb) 感染的全球负担对于公共卫生政策至关重要.
- 人口中很大一部分患有结核免疫反应,但并非所有人都患有活跃感染.
- 最近的Mtb感染对患有活跃结核病 (TB) 的风险更高.
研究的目的:
- 估计全球可行的Mtb感染负担,区分最近和总感染.
- 为改善结核病负担估计提供有关结核病自然史的最新见解.
- 确定患有结核病进展风险较高的人群.
主要方法:
- 发达国家每年Mtb感染风险的具体趋势.
- 使用了结论性数学模型,结合了再感染和自我清除率.
- 估计最近 (2年内) 和总可生存的Mtb感染,使用基于有限的经验数据的建模.
主要成果:
- 在2022年,估计有1.337亿人最近感染了Mtb (1.7%全球).
- 据估计,共有2.889亿人 (全球3.7%) 携带一种可行的Mtb感染.
- 最近感染的高负担在东南亚,西太平洋和非洲被观察到,印度,印度尼西亚和中国的数量最高.
结论:
- 该研究提供了对可行的Mtb感染的全球负担估计,强调了大量最近感染和面临风险的人口.
- 迫切需要新的诊断工具来检测可行的Mtb,特别是在可能从结核病预防治疗中受益的人群中.
- 这些发现强调了了解Mtb感染动态对于有效的结核病控制策略的重要性.
相关概念视频
Mathematical Modeling: Problem Solving
376
Mathematical modeling transforms real-world scenarios into mathematical expressions, allowing for structured problem-solving and analysis. This process involves defining the situation, assigning variables to measurable quantities, selecting an appropriate model, and solving the resulting equation. Such models are invaluable in finance, providing precise methods to evaluate investments, loans, and repayment structures.A widely used example is the calculation of fixed monthly payments on a loan,...
376
Global Climate Change
29.0K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
29.0K
Mathematical Induction
278
Mathematical induction is a structured method of proof used to confirm the truth of statements involving natural numbers. Consider the sum of the first n natural numbers:This formula describes a pattern that appears to hold true as more terms are added. To verify that it is valid for all natural numbers, mathematical induction proceeds in two essential steps. The first is the base case, where the formula is tested for the initial value, typically n = 1. Substituting into both sides confirms the...
278
Fundamental Mathematical Principles in Pharmacokinetics: Mathematical Expressions and Units
1.6K
Mathematical principles play a crucial role in pharmacokinetics, providing a framework for understanding and quantifying drug distribution and elimination dynamics in the body. By utilizing mathematical expressions and units, pharmacologists can accurately characterize the behavior of drugs, optimize dosing regimens, and predict therapeutic outcomes.
One significant application of mathematics in pharmacokinetics is the characterization of drug distribution through the volume of distribution...
One significant application of mathematics in pharmacokinetics is the characterization of drug distribution through the volume of distribution...
1.6K
What are Estimates?
8.8K
It isn't easy to measure a parameter such as the mean height or the mean weight of a population. So, we draw samples from the population and calculate the mean height or mean weight of the individuals in the sample. This sample data acts as a representative measure of the population parameter. These sample statistics are known as estimates.
The estimate for the mean of a sample is denoted by ͞x, whereas the mean of the population is designated as μ. Further, parameters such...
The estimate for the mean of a sample is denoted by ͞x, whereas the mean of the population is designated as μ. Further, parameters such...
8.8K
Fundamental Mathematical Principles in Pharmacokinetics: Calculus and Graphs
3.2K
The fundamental mathematical principles, such as calculus and graphs, play crucial roles in analyzing drug movement and determining pharmacokinetic parameters. Differential calculus examines rates of change and helps to determine the dissolution rate of drugs in biofluids, as well as how drug concentrations change over time. For instance, it can help calculate the rate of elimination of a drug from the body based on its concentration-time profile.
On the other hand, integral calculus focuses on...
On the other hand, integral calculus focuses on...
3.2K


