Vaccine-Derived Poliovirus in Laos (Update)

16 Dec 2015

A further two cases of vaccine-derived poliovirus type 1 (VDPV1) have been reported to WHO by the Laos National IHR Focal Point. Both cases have been identified in Xaisomboun province in the north of the country, near the capital Vientiane.

The first case is a 7 month-old child in Hom district, with onset of paralysis on 3 October 2015. The second case is a 14-year-old male in Anouvong district, with onset of paralysis on 28 October 2015. The total number of cases in Laos is now 7. These new cases have still to be verified by WHO.

Six vaccination sessions have been planned from October 2015, to March 2016,  with around 8.6 million doses to be administered to children younger than 15 years.

Advice for Travellers

It should be confirmed that children have received their recommended doses of polio vaccine according to the UK childhood schedule. It is recommended that travellers have a poliomyelitis booster (or course) if not already protected. Travellers should also take precautions with food, water and personal hygiene.

• See the Notice Board of the country record for information on Polio Vaccination Exit Recommendations.