Progress Toward Poliomyelitis Eradication - Nigeria, January 2018-May 2019.
| Autor: | Adamu US, Archer WR, Braka F, Damisa E, Siddique A, Baig S, Higgins J, Sume GE, Banda R, Korir CK, Waziri N, Gidado S, Bammeke P, Edukugo A, Nganda GW, Forbi JC, Burns CC, Liu H, Jorba J, Asekun A, Franka R, Wassilak SGF, Bolu O |
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| Jazyk: | angličtina |
| Zdroj: | MMWR. Morbidity and mortality weekly report [MMWR Morb Mortal Wkly Rep] 2019 Jul 26; Vol. 68 (29), pp. 642-646. Date of Electronic Publication: 2019 Jul 26. |
| DOI: | 10.15585/mmwr.mm6829a3 |
| Abstrakt: | The number of wild poliovirus (WPV) cases in Nigeria decreased from 1,122 in 2006 to six WPV type 1 (WPV1) in 2014 (1). During August 2014-July 2016, no WPV cases were detected; during August-September 2016, four cases were reported in Borno State. An insurgency in northeastern Nigeria had resulted in 468,800 children aged <5 years deprived of health services in Borno by 2016. Military activities in mid-2016 freed isolated families to travel to camps, where the four WPV1 cases were detected. Oral poliovirus vaccine (OPV) campaigns were intensified during August 2016-December 2017; since October 2016, no WPV has been detected (2). Vaccination activities in insurgent-held areas are conducted by security forces; however, 60,000 unvaccinated children remain in unreached settlements. Since 2018, circulating vaccine-derived poliovirus type 2 (cVDPV2) has emerged and spread from Nigeria to Niger and Cameroon; outbreak responses to date have not interrupted transmission. This report describes progress in Nigeria polio eradication activities during January 2018-May 2019 and updates the previous report (2). Interruption of cVDPV2 transmission in Nigeria will need increased efforts to improve campaign quality and include insurgent-held areas. Progress in surveillance and immunization activities will continue to be reviewed, potentially allowing certification of interruption of WPV transmission in Africa in 2020. Competing Interests: All authors have completed and submitted the ICMJE form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed. |
| Databáze: | MEDLINE |
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