Rotary announced in August that nearly $100 million in grants to support the global effort to end polio, a vaccine-preventable disease that once paralyzed hundreds of thousands of children each year.

The announcement comes as Nigeria marks two years without any reported cases of wild poliovirus, following four reported cases in 2016.

“The fact that no new cases of wild poliovirus have been detected in Nigeria points to the improved surveillance and rapid response protocols Rotary and its Global Polio Eradication Initiative partners have established, particularly in insecure and inaccessible areas,” said Michael K. McGovern, chair of Rotary’s International PolioPlus Committee. “While this progress is promising, it’s time to redouble our efforts so we can continue to maintain the political and financial support necessary to end polio for good.”