A generalized version of fractional models is introduced for the COVID-19 pandemic,
including the effects of isolation and quarantine. First, the general structure of fractional …

Background The death toll of COVID-19 topped 170,000 in Europe by the end of May 2020.
COVID-19 has caused an immense psychological burden on the population, especially …

Abstract 34,354,966 active cases and 460,787 deaths because of COVID-19 pandemic were
recorded on November 06, 2021, in India. To end this ongoing global COVID-19 pandemic …

Twitter is a useful source for detecting anti-vaccine content due to the increasing prevalence
of these arguments on social media. We aimed to identify the prominent themes about …

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-caused Coronavirus
Disease 2019 (COVID-19) is currently a global pandemic that has wreaked havoc on public …

The ongoing COVID-19 epidemic spread rapidly throughout India, with 34,587,822
confirmed cases and 468,980 deaths as of November 30, 2021. Major behavioral, clinical …

Since the development of nanostructured materials, there has been a wide range of interest
in their applications including improvement in microbial metabolic processes to enhance …

Omicron, a mutant strain of COVID-19, has been sweeping the world since November 2021.
A major characteristic of Omicron transmission is that it is less harmful to healthy adults, but …

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 …

We propose a mathematical model for the transmission dynamics of SARS-CoV-2 in a
homogeneously mixing non constant population, and generalize it to a model where the …