What should you know about OPV polio vaccine?

OPV is designed to prompt immune defences in the digestive tract and throughout the body. That response helps the body recognise poliovirus if exposed later. Polio can sometimes reach the nervous system, causing weakness, difficulty moving, or breathing problems. Keeping children vaccinated supports individual protection and makes spread between people less likely.

Use the appointment schedule from your child’s healthcare provider, and keep the vaccination record up to date. Mention allergies, earlier vaccine reactions, immune conditions, and medicines that suppress immunity before the dose. Afterward, let the clinic know if the child vomits soon after the drops, because staff may advise what to do. Arrange a replacement appointment rather than abandoning the series after a missed visit.

Call emergency services for throat or facial swelling, breathing difficulty, sudden collapse, or severe allergic symptoms. Contact the child’s clinician about high or persistent fever, repeated vomiting, marked limpness, or new weakness. A mild short-lived reaction can be monitored with the clinic’s advice, but a worsening or unusual symptom deserves assessment.

Ask whether the child is due for OPV today, how a delayed dose is handled, and what household precautions are recommended when someone has reduced immune function.