Polio outbreak investigation in Dadaab refugee camp and vaccination campaign round one: 22 May – 2 June 2013
Kenya FELTP residents together with Ministry of Health and WHO took part in a polio outbreak investigation from 22 May – 2 June 2013 in Dadaabs Hagadera, refugee camp, located approximately 100 kilometres from the Kenya-Somalia border. The outbreak was first reported when a four month old female baby developed sudden weakness of the right lower limb on 30 April 2013. The baby turned negative for polio virus but two of her contacts turned positive. In response, a polio response team was drawn and dispatched to the field to investigate the outbreak and provide technical support for the five day mop up polio campaign.
A total of 15 primary suspected cases were line listed, four (27%) were above 15 years of age, mean age was eight years (SD 9.3), eight (53%) were females, eight (53%) had not completed OPV vaccination, four (26%) of this never received any. The investigation reported no mortality. Four suspected cases and five contacts have tested positive for WPV1. The Five day polio mop up campaign was done in the refugee camps and nine districts in North Eastern Kenya with an overall administrative coverage of 95% and all health workers put on alert to enhance surveillance for more cases. The team recommended enhancement of surveillance activity, strengthening of routine immunization and vaccination of the entire population for the next polio campaign in high risk areas in view of the adults being affected.