A compartmental, epidemiological, mathematical model was developed in order to analyze
the transmission dynamics of Delta and Omicron variant, of SARS-CoV-2, in Greece. The …

Background The interaction between modelers and policymakers is becoming more
common due to the increase in computing speed seen in recent decades. The recent …

The vaccine roll-out has currently established a new trend in the fight against COVID-19. In
many countries, as vaccination cover rises, the economic and social disruptions are being …

This paper presents a new hybrid compartmental model for studying the COVID-19 epidemic
evolution in Italy since the beginning of the vaccination campaign started on 2020/12/27 and …

This paper demonstrates how a short-term prediction of the effective reproduction number
(Rt) of COVID-19 in regions of Greece is achieved based on online mobility data. Various …

Despite concerted efforts by health authorities worldwide to contain COVID-19, the SARS-
CoV-2 virus has continued to spread and mutate into new variants with uncertain …

In this article, we statistically examine the effectiveness of non‐pharmaceutical interventions
(NPIs) implemented by the national governments of Greece and Cyprus during 2020 to (a) …

COVID-19 created an unprecedented global public health crisis during 2020–2021. The
severity of the fast-spreading infection, combined with uncertainties regarding the physical …

This paper is devoted to investigating the impact of vaccination on mitigating COVID-19
outbreaks. In this work, we propose a compartmental epidemic ordinary differential equation …

Vaccine hesitancy, which potentially leads to the refusal or delayed acceptance of COVID-
19 vaccines, is considered a key driver of the increasing death toll from the pandemic in the …