Coronavirus - Wikipedia
The coronavirus RNA genome has a 5′ methylated cap and a 3′ polyadenylated tail, which allows it to act like a messenger RNA and …
Coronavirus - World Health Organization (WHO)
Aug 6, 2026 · Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with …
Coronavirus Disease 2019 (COVID-19) | Covid | CDC
Covid COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and …
COVID-19 - Wikipedia
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. Starting in January 2020, …
Coronavirus disease 2019 (COVID-19) - Symptoms and causes
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and …
Coronavirus Disease (COVID-19): Symptoms & Treatment
Feb 28, 2025 · COVID-19 is a respiratory illness caused by the SARS-CoV-2 virus, a type of coronavirus. Symptoms range from mild …
About COVID-19 | Covid | CDC
Learn about COVID-19 and how it spreads About COVID-19 COVID-19 most often causes respiratory symptoms that can feel much …
Coronavirus disease (COVID-19)
Nov 27, 2025 · COVID-19 is a disease caused by the SARS-CoV-2 coronavirus. There are a range of signs and symptoms, but hte …
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, …
COVID-19 summary - King County, Washington
This page contains updated and consolidated COVID-19 disease information that better aligns with current data. For up-to-date …