Polio Outbreak Hits China

If you thought polio had been eradicated, you're at least 50% right: The highly infectious virus was "virtually eliminated" from the Western hemisphere in the last century, but remains endemic in Pakistan, among other places, reports the BBC—and a strain circulating there has been genetically tied to the first cases to appear in China since 1999. WHO confirms that at least seven cases have been diagnosed in a western Chinese province bordering Pakistan, and fears that Muslim pilgrimages to Mecca will give the virus longer legs. Chinese officials are attempting to stem the spread via a vaccination campaign. (More polio stories.)