Since the beginning of the 2021 year, all the main six vaccines against COVID-19 have
been used in mass vaccination companies around the world. Virus neutralization and …

Background During the ongoing coronavirus disease 2019 (COVID-19) pandemic, many
individuals were infected with and have cleared the virus, developing virus-specific …

Delta has outcompeted most preexisting variants of SARS-CoV-2, becoming the globally
predominant lineage by mid-2021. Its subsequent evolution has led to the emergence of …

Documenting the circulation dynamics of SARS-CoV-2 variants in different regions of the
world is crucial for monitoring virus transmission worldwide and contributing to global efforts …

Both SARS-CoV-2 infection and vaccination have previously been demonstrated to elicit
robust, yet somewhat limited immunity against the evolving variants of SARS-CoV-2 …

In 2021, the COVID-19 pandemic was characterized by global spread of several lineages
with evidence for increased transmissibility. Throughout the pandemic, Russia has remained …

Since the onset of the COVID-19 pandemic, humanity has experienced the spread and
circulation of several SARS-CoV-2 variants that differed in transmissibility, contagiousness …

Whole genome sequencing of viral specimens following molecular diagnosis is a powerful
analytical tool of molecular epidemiology that can critically assist in resolving chains of …

The aim of this study was to investigate and obtain insights into the appearance, spread and
impact of the Omicron variants and their sub-lineages in Cyprus by analyzing 611 high …

SARS-CoV-2 has a relatively high mutation rate, with the frequent emergence of new
variants of concern (VOCs). Each subsequent variant is more difficult to neutralize by the …