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One new case was reported this week - the total number of cases for 2011 is now 51. The most recent case is a WPV1 with onset of paralysis on 27 November in Niger state.
(Via WHO Global Polio Eradication Initiative - accessed 09/01/12)
Advice for Travellers
It is recommended that travellers have a poliomyelitis booster (or course) if not already protected and take precautions with food, water and personal hygiene.