Continued Endemic Wild Poliovirus Transmission in Security-Compromised Areas - Nigeria, 2016.

Continued Endemic Wild Poliovirus Transmission in Security-Compromised Areas - Nigeria, 2016. MMWR Morb Mortal Wkly Rep. 2017 Feb 24;66(7):190-193 Authors: Nnadi C, Damisa E, Esapa L, Braka F, Waziri N, Siddique A, Jorba J, Nganda GW, Ohuabunwo C, Bolu O, Wiesen E, Adamu U Abstract On August 10, 2016, 2 years after the most recent wild poliovirus (WPV) case was reported in Nigeria (in July 2014) (1), two WPV cases were reported in the northeastern state of Borno, which has been severely affected by insurgency-related insecurity since 2013. On September 9 and 26, 2016, two additional WPV cases were reported in Borno in children whose families migrated from security-compromised, inaccessible areas of the state. All four cases were WPV serotype 1 (WPV1), with genetic differences indicating prolonged undetected transmission. A large-scale emergency response plan was developed and implemented. The plan initially called for vaccination of 815,791 children during August 15-18 in five local government areas (LGAs) in the immediate vicinity of the first two WPV cases. Subsequently, the plan was expanded to regionally synchronized supplementary immunization activities (SIAs), conducted during August 27-December 6 in five Lake Chad basin countries at increased risk for national and regional WPV1 transmission (Cameroon, Central African Republic, Chad, Niger, and Nigeria). In addition, retrospective searches for missed cases of acute flaccid para...
Source: MMWR Morb Mortal Wkl... - Category: Epidemiology Authors: Tags: MMWR Morb Mortal Wkly Rep Source Type: research