Flu

Flu (influenza) is a severe infection caused by a virus. The flu virus infects your lungs and upper airways.

  1. Symptoms and diagnosis
  2. Treatment

Flu vaccine

  1. Flu vaccine overview
  2. Getting the flu vaccine
  3. Children's flu vaccine
  4. Flu vaccine in pregnancy
  5. Flu vaccine for older people
  6. Flu vaccine for healthcare workers
  7. Flu vaccine information materials