Better Health Channel
  • Immunisation keeps us safe from many infectious diseases, but, just like any medication, we may experience side effects after our vaccinations.
  • Side effects after immunisation are mostly mild and usually last one to two days. 
  • The most common side effects are fever (that is, a temperature over 38.5°C), and redness, swelling and tenderness around the area where the needle went in to the skin.
  • Babies may be unsettled or sleepy after immunisation.
  • Millions of people – many of them babies and young children – are immunised every year, with no side effects.

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Content on this website is provided for information purposes only. Information about a therapy, service, product or treatment does not in any way endorse or support such therapy, service, product or treatment and is not intended to replace advice from your doctor or other registered health professional. The information and materials contained on this website are not intended to constitute a comprehensive guide concerning all aspects of the therapy, product or treatment described on the website. All users are urged to always seek advice from a registered health care professional for diagnosis and answers to their medical questions and to ascertain whether the particular therapy, service, product or treatment described on the website is suitable in their circumstances. The State of Victoria and the Department of Health shall not bear any liability for reliance by any user on the materials contained on this website.

Reviewed on: 19-04-2018