People with the COVID-19 infection may have different symptoms, and their symptoms may change over time.

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 …

Learn about the types of COVID-19 treatments, symptom management, and recovery. Information for healthcare workers about COVID-19. Guidance, tools, and resources for health departments to …

The global COVID-19 pandemic (also known as the coronavirus pandemic), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), began with an outbreak in Wuhan, China, in …

5 days ago · 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 …

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

Mar 13, 2026 · 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.

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.

Apr 22, 2026 · Explore a collection of articles and other resources on the Coronavirus (Covid-19) outbreak, including clinical reports, management guidelines, and commentary.

COVID-19 is the disease caused by SARS-CoV-2, the coronavirus that emerged in December 2019. Learn about symptoms, diagnosis, treatment and prevention.