Mathematical Modeling and Integrated Optimal Control of HCV–Typhoid Coinfection in Developing Nations
DOI:
https://doi.org/10.63561/jmns.v3i1.1161Keywords:
HCV, Typhoid Fever, Coinfection, Optimal Control, SanitationAbstract
Hepatitis C virus (HCV) and Typhoid fever present low-level endemic status in developing countries. Unregulated use of medical practices, inadequate sanitation, and poor health infrastructure aggravate the situation. Past studies have concentrated on the transmission of the diseases and employed basic modelling. However, the need for integrated control strategies has been largely ignored. The present study employs a deterministic mathematical model to examine the impact of integrated control strategies (Typhoid intervention, Typhoid and HCV treatment, sanitation, and HCV screening) on reducing the burden of Typhoid and HCV coinfection in a high-risk population. Optimal control theory is used to model the implementation of the strategies for a period of 400 days. The study findings indicate that simultaneous implementation of the strategies Multiple Health Interventions for HCV and Typhoid treatments, coupled with improved control of environmental sanitation, and Typhoid and HCV screening, would be most effective in addressing the dual burden of Typhoid and HCV coinfection in developing countries such as Nigeria.
References
Aniaku, S. E., Collins, O. C., & Onah, I. S. (2023). Analysis and optimal control measures of a Typhoid fever mathematical model for two socio-economic populations. Mathematics, 11(23), 4722. https://doi.org/10.3390/math11234722
Lawal, F. O., Yusuf, T. T., & Abidemi, A. (2024). On mathematical modelling of optimal control of typhoid fever with efficiency analysis. Journal of the Nigerian Society of Physical Sciences, 6(2), 2057. https://doi.org/10.46481/jnsps.2024.2057
Olawuyi O. M, Isobeye G. & Abegye S. Y. (2026). Mathematical Analysis of Typhoid-HCV co-infection Transmission Dynamics. AB Journals
Omowumi, F., Tunde T., & Afeez A. (2024). On mathematical modelling of optimal control of typhoid fever with efficiency analysis. Journal of the Nigerian Society of Physcal Sciences, 6(2), 1 - 12.
Teklu, S. W., Lachamo, T. S., & Guya, T. T. (2025). Analyses of a stage structure hepatitis C virus compartmental model with optimal control theory. Modeling Earth Systems and Environment, 11, 138. https://doi.org/10.1007/s40808-025-02288-0
Wameko, M. S., Koya, P. R., & Wedajo, A. G. (2022). Mathematical modeling of co-infections of hepatitis A viral disease and typhoid fever with optimal control strategies. International Journal of Nonlinear Analysis and Applications, 13(2), 899 to 921. https://doi.org/10.22075/ijnaa.2022.21134.2237
World Health Organization. (2023). Typhoid. WHO fact sheet.
World Health Organization. (2024). Global hepatitis report 2024: Action for access in low and middle-income countries. World Health Organization.
World Health Organization. (2025). Hepatitis C. WHO fact sheet.