www.cdc.gov
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.
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en.m.wikipedia.org
Timeline of the COVID-19 pandemic in 2019 - Wikipedia
This article documents the chronology and epidemiology of SARS-CoV-2 in 2019, the virus that causes coronavirus disease 2019 (COVID-19) and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 k...
www.who.int
Coronavirus disease (COVID-19) - World Health Organization (WHO)
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 recover without requiring special tr...
www.mayoclinic.org
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.
www.britannica.com
COVID-19 | Cause, Symptoms, Treatment, & Prevention | Britannica
Nov 14, 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.
medlineplus.gov
Coronavirus disease 2019 (COVID-19) - MedlinePlus
Jan 1, 2025 · COVID-19 is caused by a highly infectious virus. Most people get mild to moderate illness. Older adults and people with certain health conditions are at high risk for severe illness and death. More than ...
www.usatoday.com
COVID-19 this week: Latest data on cases, variants, deaths
Sep 15, 2025 · COVID-19 viral activity is high in the U.S., according to CDC data. Here's a look at the latest, including test positivity by region.
www.cdc.gov
About COVID-19 | COVID-19 | CDC
Learn about COVID-19, the virus that causes it, how it spreads, and its variants.
en.m.wikipedia.org
COVID-19 - Wikipedia
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic.
www.mayoclinic.org
COVID-19: How can I protect myself? - Mayo Clinic
Oct 24, 2025 · COVID-19 is the shortened name of coronavirus disease 2019. It is a pandemic illness caused by a coronavirus. The virus that causes COVID-19 is severe acute respiratory syndrome coronavirus 2, shortened...