Feb 3, 2026 · 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 …

Coronaviruses are a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, they cause respiratory tract infections that can range from mild to lethal.

12 hours ago · The heavily mutated new BA.3.2 COVID-19 variant, aka "cicada," is circulating in at least 31 U.S. states, data show. What to know about its spread and symptoms.

Mar 13, 2026 · 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.

Symptoms of COVID-19 (coronavirus), what to do if have severe symptoms, feel sick or were exposed, caring for others, treating COVID-19 and long-term symptoms.

COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and spreads quickly.

People with the COVID-19 infection may have different symptoms, and their symptoms may change over time.

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 …

Information for Canadians on COVID-19 (coronavirus) including current cases, risk, monitoring, COVID-19 variants and how to get updates.

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 …