A mathematical model for the sexual transmission of zika virus based on gender and symptoms. (English) Zbl 1513.34174

Barve, Trupti; Tiwari, S. K.; Porwal, P.

South East Asian J. Math. Math. Sci. 18, No. 2, 87-98 (2022).

Summary: Zika virus is a member of Flaviviridae that also causes Japanese Encephalitis, dengue, yellow fever, and West Nile fever. General symptoms of the zika virus are low-grade fever (less than 38.5°), macula-papular rash, myalgia, asthenia, headache, and transient arthritis. Zika virus can cause congenital anomalies (such as microcephaly), Guillain-Barre syndrome, and other neurological and autoimmune disorders. In the present mathematical model, we observed the effect of sexual transmission on gender and symptoms based division of the infected human population. We proposed a theorem to check the local stability of disease free equilibrium state. To verify the theorem, we performed some numerical simulations. We also analyzed the global stability of disease free equilibrium state. Furthermore, we checked the effect of different sexual transmission rates on the population dynamics by calculating normalized sensitivity indices of \(R_0\). Results of the present study suggest that sexual transmission noticeably affects Zika dissemination and by controlling sexual transmission rates, we can restrict the Zika virus spread.

MSC:

34C60	Qualitative investigation and simulation of ordinary differential equation models
34D20	Stability of solutions to ordinary differential equations
34D23	Global stability of solutions to ordinary differential equations
92D30	Epidemiology
34D05	Asymptotic properties of solutions to ordinary differential equations

Keywords:

disease-free equilibrium; stability analysis; sensitivity analysis; basic reproduction number; sexual transmission

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