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Progress Toward Global Interruption of Wild Poliovirus Transmission, 2010-2013, and Tackling the Challenges to Complete Eradication

2014; Oxford University Press; Volume: 210; Issue: suppl 1 Linguagem: Inglês

10.1093/infdis/jiu456

1537-6613

Steven G.F. Wassilak, M. Steven Oberste, Rudolf H. Tangermann, Ousmane M. Diop, Hamid Jafari, Gregory L. Armstrong,

Animal Disease Management and Epidemiology

Despite substantial progress, global polio eradication has remained elusive. Indigenous wild poliovirus (WPV) transmission in 4 endemic countries (Afghanistan, India, Nigeria, and Pakistan) persisted into 2010 and outbreaks from imported WPV continued. By 2013, most outbreaks in the interim were promptly controlled. The number of polio-affected districts globally has declined by 74% (from 481 in 2009 to 126 in 2013), including a 79% decrease in the number of affected districts in endemic countries (from 304 to 63). India is now polio-free. The challenges to success in the remaining polio-endemic countries include (1) threats to the security of vaccinators in each country and a ban on polio vaccination in areas of Afghanistan and Pakistan; (2) a risk of decreased government commitment; and (3) remaining surveillance gaps. Coordinated efforts under the International Health Regulations and efforts to mitigate the challenges provide a clear opportunity to soon secure global eradication.