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  1. 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.

  2. 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 …

  3. 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.

  4. Coronavirus Disease (COVID-19): Symptoms & Treatment

    COVID-19 is an illness caused by the SARS-CoV-2 virus. It spreads through respiratory droplets.

  5. 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.

  6. COVID Rising in 31 States Ahead of the Holidays. Know These Signs

    4 days ago · COVID-19 cases are increasing again ahead of the holidays. Here's where cases are rising in the U.S., symptoms to watch for, and how to protect yourself and others.

  7. COVID-19 (Coronavirus Disease 2019) - MedlinePlus

    May 20, 2024 · COVID-19 (coronavirus disease 2019) is a respiratory disease caused by a virus. It can be very contagious. Learn about symptoms, prevention, and treatment.

  8. COVID-19 or coronavirus (CoV) - Mayo Clinic Health System

    Dec 29, 2023 · Coronaviruses (CoV or COVID-19) are a large family of viruses that cause illness ranging from the common cold to more severe diseases.

  9. COVID-19 pandemic - Wikipedia

    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 …

  10. 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.