Abstract SARS-CoV-2, which causes COVID-19, was first identified in humans in late 2019
and is a coronavirus which is zoonotic in origin. As it spread around the world there has …

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 …

The aim of this paper is to investigate the qualitative behavior of the COVID-19 pandemic
under an initial vaccination program. We constructed a mathematical model based on a …

The spread dynamics of the SARS-CoV-2 virus have not yet been fully understood after two
years of the pandemic. The virus's global spread represented a unique scenario for …

The global acceptance of the SARS-CoV-2 airborne transmission led to prevention
measures based on quality control and air renewal. Among them, carbon dioxide (CO2) …

Severe Acute Respiratory Syndrome-CoronaVirus 2 (SARS-CoV2) caused the ongoing
pandemic. This pandemic devastated the world by killing more than a million people, as of …

We propose two different mathematical models to study the effect of immigration on the
COVID-19 pandemic. The first model does not consider immigration, whereas the second …

The clinical outcome of DENV and other Flaviviruses infections represents a spectrum of
severity that ranges from mild manifestations to severe disease, which can ultimately lead to …

In October 2020, we conducted a population-based prospective cohort study to determine
post-COVID-19 complications, recovery, return to usual health, and associated risk factors in …

The administration of vaccines against the coronavirus disease 2019 (COVID-19) started in
early December of 2020. Currently, there are only a few approved vaccines, each with …