Numerous variants of the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2)
pandemic have evolved. Viral variants may evolve with harmful susceptibility to the immunity …

The emergence and rapid global spread of the new Delta and, more recently, Omicron
variants of SARS-CoV-2 pose a daunting public health emergency. Being an RNA virus, the …

Abstract Severe Acute Respiratory Coronavirus (SARS-CoV-2) has been emerging in the
form of different variants since its first emergence in early December 2019. A new Variant of …

Since autumn 2020, rapid antigen tests (RATs) have been implemented in several countries
as an important pillar of the national testing strategy to rapidly screen for infections on site …

The coronavirus is naturally mutating over time and producing new variants. Some of them
are more contagious and destructive than previous strains. Also, some variants are capable …

The first SARS-CoV-2 variant of concern (VOC) to be designated was lineage B. 1.1. 7, later
labelled by the World Health Organization as Alpha. Originating in early autumn but …

Since commencement of COVID-19 pandemic, several SARS-CoV-2 variants have emerged
amid containment efforts via vaccination. The Delta variant (B. 1.617. 2), discovered in …

Genetic variants of severe acute respiratory syndrome coronavirus (SARS-CoV-2) have
been globally surging and devastating many countries around the world. There are at least …

Coronaviruses (CoVs) constitute a large and diverse subfamily of positive-sense single-
stranded RNA viruses. They are found in many mammals and birds and have great …

It has been more than three years since the first emergence of coronavirus disease 2019
(COVID-19) and millions of lives have been taken to date. Like most pandemics caused by …