Since the outbreak of the coronavirus disease 2019 (COVID-19) pandemic, there have been
a few variants of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), one of …

An ancient conflict between hosts and pathogens has driven the innate and adaptive arms of
immunity. Knowledge about this interplay can not only help us identify biological …

Abstract The SARS-CoV-2 Omicron BA. 1 variant emerged in 2021 and has multiple
mutations in its spike protein. Here we show that the spike protein of Omicron has a higher …

Abstract SARS-CoV-2 infection—which involves both cell attachment and membrane fusion—
relies on the angiotensin-converting enzyme 2 (ACE2) receptor, which is paradoxically …

COVID-19 is a disease with unique characteristics that include lung thrombosis, frequent
diarrhoea, abnormal activation of the inflammatory response and rapid deterioration of lung …

Background Persistent symptoms including breathlessness, fatigue, and decreased exercise
tolerance have been reported in patients after acute SARS‐CoV‐2 infection. The biological …

We report severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike ΔH69/V70
in multiple independent lineages, often occurring after acquisition of receptor binding motif …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the RNA virus
responsible for the coronavirus disease 2019 (COVID-19) pandemic. Although SARS-CoV-2 …

Severe COVID‐19 is characterized by lung abnormalities, including the presence of
syncytial pneumocytes. Syncytia form when SARS‐CoV‐2 spike protein expressed on the …

The high transmissibility of SARS-CoV-2 Omicron subvariants was generally ascribed to
immune escape. It remained unclear whether the emerging variants have gradually …