Mathematical model of MDR-TB and XDR-TB with isolation and lost to follow-up
type: Item
instance of: scholarly article
title: Mathematical model of MDR-TB and XDR-TB with isolation and lost to follow-up
zbMATH Open document ID: 1433.92024
DOI: 10.1155/2015/828461
author: Peng Zhang
published in: Abstract and Applied Analysis
publication date: 2018-08-29T00:00:00Z
review text: Summary: We present a deterministic model with isolation and lost to follow-up for the transmission dynamics of three strains of \textit{Mycobacterium tuberculosis} (TB), namely, the drug sensitive, multi-drug-resistant (MDR), and extensively-drug-resistant (XDR) TB strains. The model is analyzed to gain insights into the qualitative features of its associated equilibria. Some of the theoretical and epidemiological findings indicate that the model has locally asymptotically stable (LAS) disease-free equilibrium when the associated reproduction number is less than unity. Furthermore, the model undergoes in the presence of disease reinfection the phenomenon of backward bifurcation, where the stable disease-free equilibrium of the model coexists with a stable endemic equilibrium when the associated reproduction number is less than unity. Further analysis of the model indicates that the disease-free equilibrium is globally asymptotically stable (GAS) in the absence of disease reinfection. The result of the global sensitivity analysis indicates that the dominant parameters are the disease progression rate, the recovery rate, the infectivity parameter, the isolation rate, the rate of lost to follow-up, and fraction of fast progression rates. Our results also show that increase in isolation rate leads to a decrease in the total number of individuals who are lost to follow-up.
Mathematics Subject Classification ID: 92C60
Mathematics Subject Classification ID: 34C60
zbMATH DE Number: 6929057
Wikidata QID: Q59101438
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2015/828461
OpenAlex ID: W1915609034
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description: scientific article; zbMATH DE number 6929057