The majority of children do not need a tonsillectomy.” But when done for the right reasons, tonsillectomy offers a meaningful ...

SARS-CoV-2 articles from across Nature Portfolio SARS-CoV-2 is a positive-sense single-stranded RNA virus. It is contagious in humans and is the cause of the coronavirus disease 2019 (COVID-19).

Read the latest medical research on the prevention, management, and treatment of COVID-19 and the SARS-CoV-2 virus. This section also covers earlier related diseases, including SARS.