Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a virus that belongs to
the coronavirus family and is the cause of coronavirus disease 2019 (COVID-19). As of May …

To determine virus shedding duration, we examined clinical samples collected from the
upper respiratory tracts of persons infected with severe acute respiratory syndrome …

Objectives: High viral load in upper respiratory tract specimens observed for Delta cases
might contribute to its increased infectivity compared to the other variant. However, it is not …

Objective: With the global epidemic of coronavirus disease 2019 (COVID-19), vaccination
rates are increasing globally. This study evaluated the relevant clinical manifestations of …

The mRNA-1273 vaccine for coronavirus disease 2019 (COVID-19) demonstrated 93.2%
efficacy in reduction of symptomatic severe acute respiratory syndrome coronavirus 2 (SARS …

With vaccination against COVID-19 stalled in some countries, increasing vaccine
accessibility and distribution could help keep transmission under control. Here, we study the …

Importance SARS-CoV-2 viral load (VL) in the nasopharynx is difficult to quantify and
standardize across settings, but it may inform transmission potential and disease severity …

We analyzed 324,734 SARS-CoV-2 variant screening tests from France enriched with
16,973 whole-genome sequences sampled during September 1, 2021–February 28, 2022 …

Since the beginning of the COVID-19 pandemic and until September 2021, Spain suffered
five waves of infection, the latter being related to the expansion of the Delta variant and with …

SARS-CoV-2, the causative agent of the COVID-19 pandemic, undergoes continuous
evolution, highlighting an urgent need for development of novel antiviral therapies. Here we …