Mukandavire2009 - Model for HIV-Malaria co-infection

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Model Identifier
MODEL1805230001
Short description
Mathematical model for HIV, malaria and HIV-malaria co-infection.
Format
SBML (L2V4)
Related Publication
  • Mathematical analysis of a model for HIV-malaria co-infection.
  • Mukandavire Z, Gumel AB, Garira W, Tchuenche JM
  • Mathematical biosciences and engineering : MBE , 4/ 2009 , Volume 6 , Issue 2 , pages: 333-362 , PubMed ID: 19364156
  • Department of Applied Mathematics, National University of Science and Technology, Bulawayo, Zimbabwe. zmukandavire@nust.ac.zw
  • A deterministic model for the co-interaction of HIV and malaria in a community is presented and rigorously analyzed. Two sub-models, namely the HIV-only and malaria-only sub-models, are considered first of all. Unlike the HIV-only sub-model, which has a globally-asymptotically stable disease-free equilibrium whenever the associated reproduction number is less than unity, the malaria-only sub-model undergoes the phenomenon of backward bifurcation, where a stable disease-free equilibrium co-exists with a stable endemic equilibrium, for a certain range of the associated reproduction number less than unity. Thus, for malaria, the classical requirement of having the associated reproduction number to be less than unity, although necessary, is not sufficient for its elimination. It is also shown, using centre manifold theory, that the full HIV-malaria co-infection model undergoes backward bifurcation. Simulations of the full HIV-malaria model show that the two diseases co-exist whenever their reproduction numbers exceed unity (with no competitive exclusion occurring). Further, the reduction in sexual activity of individuals with malaria symptoms decreases the number of new cases of HIV and the mixed HIV-malaria infection while increasing the number of malaria cases. Finally, these simulations show that the HIV-induced increase in susceptibility to malaria infection has marginal effect on the new cases of HIV and malaria but increases the number of new cases of the dual HIV-malaria infection.
Contributors
Submitter of the first revision: Matthew Roberts
Submitter of this revision: Matthew Roberts
Modellers: Matthew Roberts

Metadata information

isDescribedBy (1 statement)
PubMed 19364156

hasPart (2 statements)
Experimental Factor Ontology malaria
Experimental Factor Ontology HIV infection

Curation status
Non-curated
Tags

Connected external resources

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Model files
Mukandavire2009.xml SBML L2V4 representation of Mukandavire2009 - Model for HIV-Malaria co-infection 42.43 KB Preview | Download

Additional files
Mukandavire2009.cps No initial conditions. Need to ensure the definitions for total_new_cases and mortality are correct. 81.04 KB Preview | Download

  • Model originally submitted by : Matthew Roberts
  • Submitted: May 23, 2018 4:15:19 PM
  • Last Modified: May 23, 2018 4:15:19 PM
Revisions
  • Version: 2 public model Download this version
    • Submitted on: May 23, 2018 4:15:19 PM
    • Submitted by: Matthew Roberts
    • With comment: Edited model metadata online.