Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. The first known case was identified in Wuhan, China,...

The COVID-19 pandemic (also known as the coronavirus pandemic), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), began with an outbreak...

A COVID‑19 vaccine is a vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that...

COVID-19 testing involves analyzing samples to assess the current or past presence of SARS-CoV-2, the virus that cases COVID-19 and is responsible for...

During the early stages of the COVID-19 pandemic, a number of non-pharmaceutical interventions, particularly lockdowns (encompassing stay-at-home orders...

Since the beginning of the COVID-19 pandemic, there have been efforts by scientists, governments, and others to determine the origin of the SARS-CoV-2...

200,000 new daily cases during parts of December 2020 and January 2021. COVID-19 vaccines became available in December 2020, under emergency use, beginning...

died from coronavirus disease 2019 (COVID-19), as a result of infection by the virus SARS-CoV-2 during the COVID-19 pandemic. Deaths in 2020 Deaths in...

the coronavirus disease 2019 (COVID-19) and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 occurred in Wuhan, People's Republic...

intentional disinformation and conspiracy theories, about the scale of the COVID-19 pandemic and the origin, prevention, diagnosis, and treatment of the disease...