Coronavirus - Wikipedia
Coronaviruses are a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, they cause …
Coronavirus - World Health Organization (WHO)
Aug 6, 2026 · Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with …
Coronavirus Disease 2019 (COVID-19) | Covid | CDC
COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and spreads …
COVID-19 - Wikipedia
People with the COVID-19 infection may have different symptoms, and their symptoms may change over time.
The latest on COVID-19 cases, strains, symptoms - USA TODAY
Sep 19, 2026 · What is the most common COVID-19 variant? The CDC has transitioned to using a longer timeframe to release …
Coronavirus disease 2019 (COVID-19) - Symptoms and causes
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and …
New COVID Variant 'Cicada' Is Spreading in 31 States. These Are Its ...
Apr 13, 2026 · BA.3.2, a heavily mutated new COVID-19 variant that may be better able to evade immunity from vaccines or prior …
Coronavirus Disease (COVID-19): Symptoms & Treatment
COVID-19 is an illness caused by the SARS-CoV-2 virus. It spreads through respiratory droplets.
Symptoms of COVID-19 | Covid | CDC
Mar 10, 2025 · Influenza (Flu) and COVID-19 are both contagious respiratory illnesses, but they are caused by different viruses. …
Coronavirus disease (COVID-19)
Nov 27, 2025 · COVID-19 is caused by the SARS-CoV-2 virus, which spreads through the air in infectious respiratory particles from …