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Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
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Parameter identification in a tuberculosis model for Cameroon.

Dany Pascal Moualeu-Ngangue1, Susanna Röblitz2, Rainald Ehrig2

  • 1Institute of Horticultural Production Systems, Leibniz Universität Hannover, Hannover, Germany.

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Improving access to tuberculosis (TB) treatment in Cameroon can significantly reduce disease burden. Mathematical modeling shows increasing access to care is key to controlling TB transmission dynamics.

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Area of Science:

  • Epidemiology
  • Mathematical Biology
  • Public Health

Background:

  • Tuberculosis (TB) remains a significant public health challenge in Cameroon.
  • Weak diagnosis capacity and limited access to treatment hinder effective TB control.
  • Understanding TB transmission dynamics is crucial for developing targeted interventions.

Purpose of the Study:

  • To design and analyze a deterministic mathematical model of TB transmission in Cameroon.
  • To identify key parameters influencing TB dynamics, including access to treatment and diagnosis.
  • To predict the impact of improved access to care on the TB disease burden.

Main Methods:

  • Development of a deterministic mathematical model incorporating frequency- and density-dependent transmission.
  • Analysis of the model's mathematical well-posedness and epidemiological reasonableness.
  • Sensitivity analysis using a Gauss-Newton method to identify influential parameters.

Main Results:

  • The model is mathematically sound and epidemiologically relevant.
  • Parameters related to access to medical facilities significantly impact TB transmission dynamics.
  • The model predicts a substantial reduction in TB burden with gradual increases in access to care.

Conclusions:

  • Mathematical modeling provides valuable insights into TB transmission in Cameroon.
  • Enhancing access to medical facilities and treatment is a critical strategy for TB control.
  • Interventions focused on improving healthcare access can lead to significant long-term reductions in TB burden.