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. 2011 Aug;17(8):1506–1509. doi: 10.3201/eid1708.110195

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Pointe-Noire, Republic of the Congo, representing the 4 districts, Lumuba, MvouMvou, Tie-Tie, and Loandjili. The gray scale represents the cumulative acute flaccid paralysis (AFP) rate per 100,000 inhabitants September 2010–February 2011. Black area represents the 4 sectors of Mbota where the cross-sectional survey took place. The last census provided by local health authorities occurred in 2007, with a growth rate applied to estimate the 2010 official population size in Pointe-Noire, aggregated by gender and age. We used a 2005 population survey to disaggregate population figures by gender and 5-year age groups and calculate specific acute flaccid paralysis rate. DRC, Democratic Republic of the Congo.