Multi-strain pandemics have emerged as a major concern. We introduce a new model for
assessing the connection between multi-strain pandemics and mortality rate, basic …

Pandemics are a source of extensive mortality, economic impairment, and dramatic social
fluctuation. Once a pandemic occurs, policymakers are faced with the highly challenging …

The post-effects of COVID-19 have begun to emerge in the long term in society. Stroke has
become one of the most common side effects in the post-COVID community. In this study, to …

We contribute a full analysis of theoretical and numerical aspects of the collocation
approach recently proposed by some of the authors to compute the basic reproduction …

In the first part of this paper, we review old and new results about the influence of host
population heterogeneity on (various characteristics of) epidemic outbreaks. In the second …

Small and large scale pandemics are a natural phenomenon repeatably appearing
throughout history, causing ecological and biological shifts in ecosystems and a wide range …

We rigorously investigate the convergence of a new numerical method, recently proposed
by the authors, to approximate the reproduction numbers of a large class of age-structured …

We consider a between-host model for a single epidemic outbreak of an infectious disease.
According to the progression of the disease, hosts are classified in regard to the pathogen …

Contact tracing can play a key role in controlling human-to-human transmission of a highly
contagious disease such as COVID-19. We investigate the benefits and costs of contact …

In this paper, we consider a numerical threshold of a linearly implicit Euler method for a
nonlinear infection-age SIR model. It is shown that the method shares the equilibria and …