With the continuation of the pandemic, many severe acute respiratory syndrome coronavirus
2 (SARS-CoV-2) variants have appeared around the world. Owing to a possible risk of …

Objective To evaluate the relation between diagnosis of covid-19 with SARS-CoV-2 variant
B. 1.1. 7 (also known as variant of concern 202012/01) and the risk of hospital admission …

Abstract SARS-CoV-2 lineage B. 1.1. 7, a variant that was first detected in the UK in
September 2020, has spread to multiple countries worldwide. Several studies have …

Background: We conducted this review to summarize the relation between viral mutation
and infectivity of SARS-CoV-2 and also the severity of COVID-19 in vivo and in vitro. Method …

Background The empirical basis for a quantitative assessment of the disease burden
imposed by long-COVID is currently scant. We aimed to inform the disease burden caused …

Background SARS-CoV-2 lineage B. 1.1. 7 has been associated with an increased rate of
transmission and disease severity among subjects testing positive in the community. Its …

Background As of March 28, 2021 new variants of concern (VOCs) account for 67% of all
Ontario SARS-CoV-2 infections. The B. 1.1. 7 variant originally detected in Kent, United …

The study highlights three key considerations when trying to attribute an increase in disease
severity to a variant of concern that also increases transmission risk, in the context of …

Certain genetic variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
are of substantial concern because they may be more transmissible or detrimentally alter the …

In December 2020, UK authorities warned of the rapid spread of a new SARS-CoV-2 variant,
belonging to the B. 1.1. 7 lineage, known as the Alpha variant. This variant is characterized …