
Coronavirus - World Health Organization (WHO)
Dec 5, 2025 · Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with the virus will experience mild to moderate respiratory illness and …
Coronavirus - Wikipedia
Coronaviruses are a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, they cause respiratory tract infections that can range from mild to lethal.
About COVID-19 | Covid | CDC
COVID-19 (coronavirus disease 2019) is a disease caused by the SARS-CoV-2 virus. It can be very contagious and can spread quickly. COVID-19 most often causes respiratory symptoms that can feel …
COVID-19: Symptoms, treatment, what to do if you feel sick
Symptoms of COVID-19 (coronavirus), what to do if have severe symptoms, feel sick or were exposed, caring for others, treating COVID-19 and long-term symptoms.
Coronavirus disease 2019 (COVID-19) - Symptoms and causes
Oct 21, 2025 · Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
COVID - Coronavirus Statistics - Worldometer
Daily and weekly updated statistics tracking the number of COVID-19 cases, recovered, and deaths. Historical data with cumulative charts, graphs, and updates.
COVID-19 | Cause, Symptoms, Treatment, & Prevention | Britannica
4 days ago · There is no cure for COVID-19, but individuals can be protected against severe illness through vaccination. Learn about the symptoms, treatment, and prevention of COVID-19.
COVID-19 - Johns Hopkins Medicine
COVID-19 is the disease caused by SARS-CoV-2, the coronavirus that emerged in December 2019. Learn about symptoms, diagnosis, treatment and prevention.
Coronavirus Disease (COVID-19): Symptoms & Treatment
COVID-19 is an illness caused by the SARS-CoV-2 virus. It spreads through respiratory droplets.
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 an infected person. Transmission is more likely in close contact …