COVID-19: What is COVID-19? What are the symptoms?
COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. COVID-19 most often causes respiratory symptoms that can feel much like a cold, a flu, or pneumonia. Like many other respiratory viruses, coronaviruses spread quickly through droplets you project out of your mouth or nose when you breathe, cough, sneeze, or speak. COVID-19 may attack more than your lungs and respiratory system. Other parts of your body may also be affected by the disease.
Most people with COVID-19 have mild symptoms, but some people become severely ill. Some people may suffer from post-COVID conditions — or “long COVID”. Older adults and people who have certain underlying medical conditions are at increased risk of severe illness from COVID-19. Vaccines against COVID-19 are safe and effective. Vaccines teach our immune system to fight the virus that causes COVID-19.
You can read more about COVID-19, variants, symptoms and prevention here.