Some interesting facts:
The Global Polio Eradication Initiative is a public-private partnership led by national governments and spearheaded by the World Health Organization (WHO), Rotary International, the US Centers for Disease Control and Prevention (CDC), and the United Nations Children’s Fund (UNICEF). Its goal is to eradicate polio worldwide. 
Last case of wild polio virus in the Americas 1991.

Global cases of Polio down 20 from same period last year.
Good news in non-endemic countries YTD 19  last yr YTD 224   
Not so good news in endemic  countries YTD 323  last yr YTD was 138
The endemic countries are Pakistan,Afganistan and Nigeria 
 
Here is the link for the latest detailed statistics.