Researchers rapidly mobilized to study numerous aspects of the disease such as its evolution, clinical manifestations, effects, treatments, and vaccinations. This led to a rapid increase in the number of COVID-19-related publications.
SARS-CoV-2 emerged in Wuhan, Hubei, China. In December 2019, coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome. All-cause death was the primary endpoint.
