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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...
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.
3 days ago · The heavily mutated new BA.3.2 COVID-19 variant, aka "cicada," is circulating in at least 25 U.S. states, the CDC said. 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 or shared indoor space...
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 December 2019. It spread to oth...
