I used academic search premier to find information on polio.

http://web.ebscohost.com/ehost/pdfviewer/pdfviewer?sid=e1547f6f-a42c-4897-a07f-58965b612cc3%40sessionmgr11&vid=4&hid=11

“As of 24 August 2010, there have been 30 reported cases of wild poliovirus in India compared to 236 during the same period in 2009. [2]. Almost all wild polio cases in India are from high-risk districts in western Uttar Pradesh and central Bihar [3]. The most recent primary strategy to interrupt transmission of wild poliovirus in India is to improve supplemental immunization activities (SIAs or mass campaigns) and routine immunization coverage in 107 high-risk blocks of western Uttar Pradesh and central Bihar [4]”

The information I gathered from the source indicates a strong success rate in India toward the elimination of Polio. It supports the claim that polio is indeed “a perfect candidate for eradication”. There are high risk locations which need to be focused on to yield progress and eventually a successful eradication.