Vector-borne diseases (VBDs) have a significant impact on human and animal health. VBD
has been emerging or re-emerging in a variety of geographic regions, raising alarming new …

In this paper, we formulate a new model of a particular type of influenza virus called
AH1N1/09 in the framework of the four classes consisting of susceptible, exposed, infectious …

The use of models in epidemiology has become increasingly important for studying the
spread of disease, designing interventions to control and prevent further outbreaks, and …

Several SARS-CoV-2 variants have emerged around the world, and the appearance of other
variants depends on many factors. These new variants might have different characteristics …

In this paper, we propose a nonlinear fractional order model in order to explain and
understand the outbreaks of influenza A (H1N1). In the fractional model, the next state …

In this paper we construct nonstandard finite difference (NSFD) schemes to obtain numerical
solutions of the susceptible–infected (SI) and susceptible–infected–recovered (SIR) …

H1N1 is an infectious virus which, when spread affects a large volume of the population. It is
an airborne disease that spreads easily and has a high death rate. Development of …

Background: Significant uncertainty has existed about the safety of reopening college and
university campuses before the COVID-19 pandemic is better controlled. Moreover, little is …

Vaccination against the coronavirus disease 2019 (COVID-19) started in early December of
2020 in the USA. The efficacy of the vaccines vary depending on the SARS-CoV-2 variant …

We study the SEIR epidemic model for the spread of AH1N1 influenza using the Caputo–
Fabrizio fractional-order derivative. The reproduction number of system and equilibrium …