Bill Gates has arrived in Nigeria to boost a campaign to rid Africa's most populous nation of polio following a resurgence this year, say sources.
![Bill Gates to Boost Anti-polio Drive Bill Gates to Boost Anti-polio Drive](https://www.medindia.net/afp/images/US-health-disease-malaria-Gates-9806.jpg)
In 2009 and 2010, polio cases fell by 95 percent in Nigeria. The foundation said Nigeria's commitment to eradicate the crippling, but vaccine-preventable disease was at its peak during that period.
But in 2011, it said, "attention to polio waned" and the disease has now re-emerged as a serious threat to children's health, with 30 polio cases reported in six northern states.
However Gates was upbeat that Nigeria would win the war against the disease.
"Nigeria has achieved important success with polio over recent years and we are confident it can finish the job," said Gates.
Nigeria is one of four countries -- including India, Pakistan and Afghanistan -- where polio transmission has never been stopped.
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The disease once crippled children worldwide and killed 350,000 children in 1988. That was the year that a global effort was kicked off to try to make the disease only the second after smallpox to be eradicated.
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