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Five new cases were reported in the past week (four WPV1s from Katsina and one WPV3 from Yobe), bringing the total number of cases for 2012 to 77. The most recent case had onset of paralysis on 28 July (WPV1 from Katsina).
(Via WHO Global Polio Eradication - accessed 31/08/12)
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.