What should you know about OPV polio?

Polio is an infection caused by poliovirus. In some people it remains mild, while in others it can involve the nervous system and cause muscle weakness. OPV contains weakened vaccine virus that stimulates immune protection without causing the illness polio in the usual way. The resulting gut immunity can help reduce the chance of passing poliovirus to others.

Bring the child’s immunisation record to each appointment. Tell the healthcare professional about a previous severe vaccine reaction, a diagnosed immune disorder, or close household contact with someone who has reduced immunity. Let the drops be given by trained staff and follow their instructions afterward. Do not replace scheduled vaccination with supplements or home remedies; ask the clinic about catch-up arrangements if an appointment was missed.

Get emergency help if breathing becomes difficult or the lips, tongue, or throat swell after vaccination. Medical review is also sensible for severe weakness, repeated vomiting, fainting, or a child who is difficult to wake. A fever or irritability may follow vaccination, but seek advice if symptoms are intense, persistent, or accompanied by a serious change in behaviour.

Ask how OPV fits with other polio vaccines, when the next dose is due, and whether travel, an immune condition, or household exposure changes the plan.