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Four new cases were reported in the past week, three WPV1 and one wild poliovirus type 3 (WPV3), bringing the total number of cases for 2011 to 33 (25 WPV1, 9 WPV3). The most recent case had onset of paralysis on 26 August (WPV3 from Kano).
(Via WHO Global Polio Eradication Initiative - accessed 29/09/11)
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.