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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 - 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 …

  3. 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.

  4. 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.

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

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

  7. COVID-19 | Cause, Symptoms, Treatment, & Prevention | Britannica

    Dec 13, 2025 · 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.

  8. Coronavirus & COVID-19 Overview: Symptoms, Risks, Prevention ... - WebMD

    Dec 26, 2022 · COVID-19 is a new type of coronavirus that causes mild to severe cases. Here’s a quick guide on how to spot symptoms, risk factors, prevent spread of the disease, and find out …

  9. COVID-19 (Coronavirus) - HHS.gov

    Jul 16, 2025 · COVID-19 was declared a global pandemic by the World Health Organization in March 2020. The United States declared a public health emergency for the COVID-19 …

  10. COVID-19 - Washington State Department of Health

    We now know that COVID-19 is here to stay for the foreseeable future. It’s important to understand how to live our lives while keeping ourselves, loved ones and community as safe …