What should you know about influenza vaccine in pregnancy?

Pregnancy can make influenza illness more serious, which is why vaccination should be discussed rather than decided from general advice alone. The vaccine trains immune recognition of influenza and does not treat an infection that has already started. Your maternity team can consider your stage of pregnancy, health history, allergies, and the formulation available.

An inactivated vaccine uses non-live influenza material. Your clinician can explain why that formulation may be considered and how vaccination fits with other pregnancy care. A sore arm, headache, tiredness, or mild fever may follow the injection.

Tell the vaccinator how far along the pregnancy is, whether you have had a previous reaction, and whether you currently have fever or another acute illness. Keep your maternity and vaccination records together. After the dose, follow advice about observation, fluids, and managing arm discomfort.

Seek urgent help for breathing difficulty, facial or throat swelling, collapse, or a rapidly spreading rash after vaccination. During pregnancy, promptly contact your maternity team for severe breathlessness, chest pain, confusion, inability to keep fluids down, or a high fever, whether or not you have been vaccinated.

Ask which influenza vaccine is suitable for your pregnancy, when to receive it, and whether any allergy or previous reaction changes the plan. Ask how to respond if you develop fever or flu symptoms and who to contact outside routine appointments.