Yellow fever vaccine side effects

A tender, red, or swollen injection site may occur after vaccination. Some people also feel tired or develop headache, muscle aches, or a feverish feeling. Record when symptoms began, how they change, and anything that makes them better or worse; this helps a clinician assess a concern.

Before vaccination, the clinician checks factors that can alter the balance of benefit and risk, including a history of severe allergy, immune-system conditions, thymus problems, pregnancy, and medicines that suppress immunity.

Follow the clinic’s aftercare instructions, rest if needed, and keep hydrated. Ask a pharmacist or doctor which pain or fever treatment is suitable for you, particularly if you have a long-term health condition or use regular medication. Do not dismiss a symptom that is becoming more intense or is unlike your usual reactions.

The Yellow Fever Vaccination guide explains the purpose of the vaccine and preparation for a clinic visit.

Seek emergency care for wheezing, breathing difficulty, swelling of the mouth, face, or throat, collapse, seizures, confusion, or severe weakness. Contact a clinician urgently for high fever, yellowing of the skin or eyes, dark urine, unusual bruising or bleeding, or persistent vomiting after vaccination.

Ask whether your past reactions, allergies, medical conditions, and medicines affect suitability, and ask which symptoms should lead you to call the clinic or emergency services.