Overview
COVID-19 is a respiratory infection caused by the SARS-CoV-2 virus, spread mainly through droplets when an infected person coughs, sneezes or talks. Most people now have a mild, flu-like illness, but older adults and people with conditions like diabetes or hypertension can still become seriously ill.
Symptoms
- Fever or chills
- Cough
- Sore throat
- Tiredness and body aches
- Loss or change of smell or taste
- Headache
- Shortness of breath (more serious)
Causes & risk factors
- Inhaling respiratory droplets from an infected person
- Close contact in crowded, poorly ventilated spaces
- Touching the face after contact with contaminated surfaces
Treatment & self-care
Mild cases are managed at home with rest, fluids and fever relief while limiting contact with others, especially the elderly. Doctors may recommend testing, and high-risk patients can benefit from early medical review. Vaccination reduces the chance of severe illness.
See a doctor urgently if
- Difficulty breathing or chest pain
- Oxygen-level concerns such as bluish lips or severe weakness
- Fever lasting more than five days
- Confusion or inability to stay awake
- Symptoms in someone elderly, pregnant or with chronic illness