What is flu vaccination done with?

An inactivated vaccine contains influenza material treated so it cannot cause flu infection. It is designed to show the immune system what to recognise, allowing a protective response to develop. Vaccine formulations can be updated for the influenza viruses expected in a season, so the product offered may vary.

Tell the vaccinator about a previous serious reaction to a vaccine, a severe allergy, current illness or medicines that affect your immune system. The injection is usually given in the upper arm. Mild soreness, redness or feeling unwell can occur for a short time. Follow the clinic’s advice about observation and contact them if a reaction worries you. Read more about the inactivated vaccine to understand the material used.

Seek urgent help for trouble breathing, swelling of the face or throat, widespread hives, collapse or severe dizziness after vaccination. These can signal a serious allergic reaction. Contact a clinician for persistent fever, worsening symptoms or any reaction that concerns you.

Ask which flu vaccine is suitable for you, whether your allergies or health conditions change the advice, and when protection is expected to develop. You can also ask what symptoms after the injection are expected and which require review.