The infectious disease brought on by COVID-19 is the pandemic that has put the lives and
economy of the entire planet in jeopardy. The only alternatives available before the creation …

In this paper, a new mathematical model involving the general form of Caputo fractional
derivative is studied for a real case of cholera outbreak. Fundamental properties of the new …

Diverse modelling techniques in cholera epidemiology have been developed and used to
(1) study its transmission dynamics,(2) predict and manage cholera outbreaks, and (3) …

In this paper, we apply optimal control theory to a novel coronavirus (COVID-19)
transmission model given by a system of non-linear ordinary differential equations. Optimal …

In this paper, a stochastic epidemic model for cholera is proposed and investigated. Firstly,
we establish sufficient conditions for extinction of the disease. Then we establish sufficient …

We describe the formulation of hepatitis B epidemic model with saturated incidence rate.
Once we formulate the epidemic problem then we discuss the basic properties (existence of …

This work investigates new fractional-order (FO) models of six chaotic diseases whose
fractional dynamics have not been studied so far in literature. Here, we design and analyse …

The newest infection is a novel coronavirus named COVID-19, that initially appeared in
December 2019, in Wuhan, China, and is still challenging to control. The main focus of this …

The optimal control strategy for time-varying epidemic models remains a wide open
research area. In this paper, the optimal vaccination strategy for a constrained time-varying …

A stochastic cholera model with saturation recovery rate is discussed. Firstly, the existence
and uniqueness of the global positive solution of the system are proved. Secondly, the …