Acta mathematica scientia, Series B >

2025 , Vol. 45 >Issue 5: 2279 - 2298

DOI: https://doi.org/10.1007/s10473-025-0525-8

OPTIMAL STUDY OF SCHISTOSOMIASIS IN HUMANS WITH ENVIRONMENTAL TRANSMISSION VIA FRACTIONAL ORDER MATHEMATICAL MODEL

  • Z. AVAZZADEH ,
  • H. HASSANI ,
  • A. Bayati ,
  • ESHKAFTAKI ,
  • M. J. ,
  • EBADI ,
  • S. ,
  • MEHRABI
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  • 1. Stony Brook Institute at Anhui University, Anhui University, Hefei 230601, China;
    2. Department of Mathematical Sciences, University of South Africa, Florida, South Africa;
    3. Department of Mathematics, Anand International College of Engineering, Jaipur 303012, India;
    4. Faculty of Mathematics, Shahrekord University, Shahrekord, Iran;
    5. Department of Mathematics, Chabahar Maritime University, Chabahar, Iran;
    6. Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
Z. Avazzadeh, E-mail: z.avazzadeh@ahu.edu.cn; avazzadz@unisa.ac.za; A. Bayati Eshkaftaki, E-mail: bayati.ali@sku.ac.ir; M. J. Ebadi, E-mail: ebadi@cmu.ac.ir; S. Mehrabi, E-mail: mehrabis@sums.ac.ir

Received date: 2024-03-11

  Revised date: 2024-11-01

  Online published: 2025-10-14

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Abstract

Background: Schistosomiasis is a parasitic disease. It is caused by a prevalent infection in tropical areas and is transmitted through contaminated water with larvae parasites. Schistosomiasis is the second most parasitic disease globally, so investigating its prevention and treatment is crucial.
Methods: This paper aims to suggest a time-fractional model of schistosomiasis disease (T-FMSD) in the sense of the Caputo operator. The T-FMSD considers the dynamics involving susceptible ones not infected with schistosomiasis $(S_{h}(t))$, those infected with the infection $(I_{h}(t))$, those recovering from the disease $(R(t))$, susceptible snails with and without schistosomiasis infection, respectively shown by $I_{v}(t)$ and $S_{v}(t)$. We use a new basis function, generalized Bernoulli polynomials, for the approximate solution of T-FMSD. The operational matrices are incorporated into the method of Lagrange multipliers so that the fractional problem can be transformed into an algebraic system of equations.
Results: The existence and uniqueness of the solution, and the convergence analysis of the model are established. The numerical computations are graphically presented to depict the variations of the compartments with time for varied fractional order derivatives.
Conclusions: The proposed method not only provides an accurate solution but also can accurately predict schistosomiasis transmission. The results of this study will assist medical scientists in taking necessary measures during screening and treatment processes.

Key words： schistosomiasis; susceptible; infected; generalized Bernoulli polynomials; optimization method

Cite this article

Z. AVAZZADEH , H. HASSANI , A. Bayati , ESHKAFTAKI , M. J. , EBADI , S. , MEHRABI . OPTIMAL STUDY OF SCHISTOSOMIASIS IN HUMANS WITH ENVIRONMENTAL TRANSMISSION VIA FRACTIONAL ORDER MATHEMATICAL MODEL[J]. Acta mathematica scientia, Series B, 2025 , 45(5) : 2279 -2298 . DOI: 10.1007/s10473-025-0525-8

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