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COVID-19 (coronavirus)

Coronavirus illness, officially COVID-19, is an infection caused by SARS-CoV-2. Symptoms range from none or mild cold symptoms to serious lung and other organ problems. Most people recover at home, but prompt assessment matters for breathlessness, deterioration or increased risk of severe illness.

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  • Coronavirus infection is a respiratory infection caused by SARS-CoV-2. The illness is called COVID-19.
  • Transmission mainly occurs through virus particles in exhaled air. Risk is higher with close and prolonged contact, crowded indoor spaces and insufficient ventilation.
  • Symptoms often resemble a cold or flu. You may also be infected without symptoms and still pass the virus on.
  • Most people recover at home. Older adults, pregnant people and those with certain chronic conditions or reduced immunity may be at higher risk of severe illness.
  • Vaccination, fresh air, staying home when ill, keeping away from vulnerable people and a well-fitting mask in higher-risk situations together reduce the likelihood of illness and transmission.
  • With symptoms and high medical risk, early medical advice may be important because any antiviral treatment needs to start in time.

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