To all the commenters too busy being aghast at giving money to a government to read the article: > Nigeria’s debt to Japan is the result of Overseas Development Assistance (ODA) provided by the Japanese government in 2014 for increased polio eradication. efforts. > The country has made great strides in its efforts to eliminate the disease thanks to this funding. > Nigeria did not record a wild case of polio from July…
This is the correct perspective. It seems that, Reddit style, many people here comment just the titles, don't read the articles. Polio is on the way to complete eradication all over the world. AFAIK the only place where it remains endemic is Baluchistan in Pakistan where the warlords are suspicious of vaccination agents. Victory on polio is a fantastic story that doesn't get the attention it deserves.
In 2017 there have been 13 wild cases in Afghanistan, 8 in Pakistan and it's still considered endemic in Nigeria (last known case in August 2016)
https://en.wikipedia.org/wiki/Poliomyelitis_eradication#2017