What should you know about vapp polio?

VAPP stands for vaccine-associated paralytic poliomyelitis. It refers to paralysis associated with a live attenuated oral polio vaccine virus changing and behaving more like disease-causing poliovirus in a susceptible person. This is distinct from paralysis caused by naturally circulating poliovirus.

The term is medical and may appear in records or vaccine discussions. Most weakness has many possible causes, so a new symptom should not be labelled VAPP without urgent clinical assessment. Vaccination decisions depend on the vaccine used, age, health history and local public-health advice.

Check the child's or adult's immunisation record and speak with a clinician or public-health service about the vaccine type and schedule. Do not delay recommended childhood immunisation because of a frightening term in a leaflet or online search. Keep details of recent vaccination, symptom onset, fever, weakness and any breathing or swallowing difficulty.

If a clinician is investigating weakness, follow their advice about tests, observation and infection precautions. Do not give extra vaccine doses or stop a schedule without professional guidance.

Seek emergency care for sudden weakness or paralysis, difficulty breathing or swallowing, loss of movement, severe neck or back stiffness, or rapidly worsening symptoms after any vaccination or infection. Bring the immunisation record if available. Prompt assessment matters because paralysis can also result from other neurological emergencies.

Ask: Which polio vaccine was given? Is the schedule complete for this person? Could the weakness have another cause? What symptoms require emergency help? Should household members or close contacts review their childhood immunisation records?