Since the appearance in the late of December 2019, SARS-CoV-2 is rapidly evolving and
mutating continuously, giving rise to various variants with variable degrees of infectivity and …

The COVID-19 pandemic has become the most devastating pandemic of the 21st century
since its appearance in December 2019. Like other RNA viruses, continuous mutation is …

The SARS-CoV-2 Omicron (B. 1.1529) variant was designated as a variant of concern (VOC)
by the World Health Organization (WHO) on November 26, 2021. Within two months, it had …

The world has been combating different variants of SARS-COV-19 since its first outbreak in
Wuhan city. SARS-COV-19 is caused by the coronavirus. The corona virus mutates and …

Since the beginning of the coronavirus disease 2019 (COVID-19) pandemic, there have
been multiple peaks of the SARS-CoV-2 (severe acute respiratory syndrome coronavirus …

The Coronavirus disease 2019 (COVID-19) pandemic poses a great threat to global public
health. The original wild-type strain of severe acute respiratory syndrome coronavirus 2 …

Since the emergence of COVID 19, the authentic SARS-CoV-2 has evolved into a range of
novel variants that are of more global concern. In late November 2021, the Omicron (lineage …

SARS-CoV-2 is the causative agent behind the ongoing COVID-19 pandemic. This virus is a
cumulative outcome of mutations, leading to frequent emergence of new variants and their …

Despite many nations' best efforts to contain the so-called COVID-19 pandemic, the
emergence of the SARS-CoV-2 Omicron strain (B. 1.1. 529) has been identified as a serious …

Recently, a large number of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) variants continuously emerged and posed a major threat to global public health. Among …