Superspreading events shaped the coronavirus disease 2019 (COVID-19) pandemic, and
their rapid identification and containment are essential for disease control. Here, we provide …

Novel coronavirus (SARS-CoV-2) enters its host cell through a surface spike protein. The
viral spike protein has undergone several modifications/mutations at the genomic level …

A previous study demonstrates that most of severe acute respiratory syndrome coronavirus-
2 (SARS-CoV-2) Brazilian strains fell in three local clades that were introduced from Europe …

The first case of SARS-CoV-2 in Basel, Switzerland was detected on February 26th 2020.
We present a phylogenetic study to explore viral introduction and evolution during the …

The rapid spread of the SARS-CoV-2 lineages B. 1.1. 7 (N501Y. V1) throughout the UK, B.
1.351 (N501Y. V2) in South Africa, and P. 1 (B. 1.1. 28.1; N501Y. V3) in Brazil has led to the …

Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome
coronavirus (SARS-CoV-2) emerged in Wuhan, China in December 2019. Since then …

Importance In late December 2019, an outbreak of a novel severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) emerged in Wuhan, China. Data on the routes of …

Purpose To determine risk factors for coronavirus disease 2019 (COVID-19) in healthcare
workers (HCWs), characterize symptoms, and evaluate preventive measures against SARS …

Background Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused
millions of infections and fatalities globally since its emergence in late 2019. The virus was …

After the first case of coronavirus disease 2019 (COVID-19) in Japan on 15 January 2020,
multiple nationwide COVID-19 clusters were identified by the end of February. The …