Coronavirus Disease 2019 (COVID-19) | COVID-19 | CDC
COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and spreads quickly.
Timeline of the COVID-19 pandemic - Wikipedia
The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2] . The first confirmed human case in the United States was on 19 …
When Did the Pandemic Start and End? - Northwestern Medicine
In March 2020, the WHO officially declared the COVID-19 outbreak a pandemic. In May 2023, the WHO declared an end to the public health emergency of international concern.
Coronavirus Symptoms: Early Signs, Serious Symptoms - WebMD
Nov 3, 2025 · Some children and teens who are hospitalized with COVID-19 have an inflammatory syndrome that may be linked to the coronavirus. Doctors call it pediatric …
Impact of COVID-19 | History, Consequences, & Place in ...
Dec 14, 2020 · Looking back, the COVID-19 pandemic stands as arguably the most disruptive event of the 21st century, surpassing wars, the September 11, 2001, terrorist attacks, the …
Naming the coronavirus disease (COVID-19) and the virus that ...
Feb 11, 2020 · WHO announced “COVID-19” as the name of this new disease on 11 February 2020, following guidelines previously developed with the World Organisation for Animal Health …
COVID-19 - Infectious Diseases - Merck Manual Professional ...
COVID-19 is a respiratory illness caused by the coronavirus SARS-CoV-2. Infection may be asymptomatic or have symptoms ranging from mild upper respiratory symptoms to acute …