Introduction: The accurate number of COVID-19 cases is essential knowledge to control an
epidemic. Currently, one of the most important obstacles in estimating the exact number of …

Objective To identify and evaluate the indexed studies that allow us to understand the
implications of imaging studies in MRI and PET/CT related to COVID-19 research. Methods …

One of the significant challenges when a new virus circulates in a host population is to
detect the outbreak as it arises in a timely fashion and implement the appropriate preventive …

The mathematical modeling of infectious diseases aims to evaluate the transmissibility of the
on-going spread of disease and guide the government's control strategies and interventions …

One of the significant challenges, when a new virus circulates in a host population, is to
detect the outbreak as it arises in a timely fashion and implement the appropriate preventive …

One of the most significant challenges in combating against the spread of infectious
diseases was the difficulty in estimating the true magnitude of infections. Unreported …

One of the most significant challenges in the early combat against COVID-19 was the
difficulty in estimating the true magnitude of infections. Unreported infections drove up …

Current European research estimates the number of undetected active SARS-CoV-2
infections (dark figure) to be two-to 130-fold the number of detected cases. We revisited the …

The dynamical systems, in which different classical or quantum states change in time, are
usually formulated in terms of differential equations, sometimes called maps [1]. The …

Background: The influenza epidemic and outbreaks impacted by nonpharmaceutical
intervention (NPI) after emergence of COVID-19 pandemic were changed. Methods: The …