COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and spreads quickly.

By May 27, less than four months after the pandemic reached the U.S., 100,000 Americans had died with COVID-19. [88] State economic reopenings and lack of widespread mask orders resulted in a …

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 …

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.

2 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.

May 20, 2024 · COVID-19 (coronavirus disease 2019) is an illness caused by a virus. This virus is a coronavirus called SARS-CoV-2. It spreads when a person who has the infection breathes out …

Sep 26, 2025 · COVID-19 is a vaccine-preventable disease mainly spread by respiratory droplets. While most have mild symptoms, others may get severely ill and need medical treatment.

COVID-19 is an illness caused by the SARS-CoV-2 virus. It spreads through respiratory droplets. Symptoms include fever, cough, shortness of breath, runny or stuffy nose, body aches and more. …

COVID-19 is a potentially severe viral infection that mostly affects your lungs and airways. What causes COVID-19? COVID-19 is caused by a type of coronavirus called SARS-CoV-2. The virus spreads: …

Learn about COVID-19, the virus that causes it, how it spreads, and its variants.