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  1. Coronavirus Disease 2019 (COVID-19) | Covid | 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 25, 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 …

  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. 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.

  5. 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.

  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. Coronavirus (COVID-19) Cases - Our World in Data

    Coronavirus (COVID-19) Cases By Edouard Mathieu, Hannah Ritchie, Lucas Rodés-Guirao, Cameron Appel, Daniel Gavrilov, Charlie Giattino, Joe Hasell, Bobbie Macdonald, Saloni Dattani, Diana …

  8. 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.

  9. 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 …

  10. 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 what to do if …