Leaders from around the world on Saturday vowed to eradicate polio, pledging millions of dollars in new funds to put an end to the crippling disease.
Australian Prime Minister Julia Gillard, who is hosting the Commonwealth Heads of Government Meeting in Perth, said her country would spend Aus$50 million ($53.5 million) over four years towards the global fight.
"While polio remains anywhere in the world it is a threat to anyone," she told a joint news conference with leaders from Britain, Canada and two of the world's four polio endemic countries -- Pakistan and Nigeria -- by her side.
"We are here today to demonstrate our commitment to ending the fight against polio, that is ending polio for all time."
Canadian Prime Minister Stephen Harper said his country would commit further investments in polio surveillance and immunisations without giving a figure, while philanthropist Bill Gates pledged $40 million in new funding.
"We're at a crossroads," Gates, co-chair of the Bill and Melinda Gates Foundation, said via a video message, adding that recent cases in China highlighted the risk of polio spreading back across the globe.
Nigerian President Goodluck Jonathan said he would raise annual spending on fighting polio from $17 million to $30 million from 2012.
Jonathan said while the disease had been reduced by 75 percent in the African nation, it remained present in some states and had started to make a comeback over the past year.