UK Professor Peter Kelly, director of public health in Teesside, claims his research staff has found a link between social networking sites and the spread of Syphilis, especially among young women.
According to Kelly, "there has been a fourfold increase in the number of syphilis cases detected with more young women being affected."
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(BTW, I didn't come up with the title for this the Telegraph did. If you would like to rant about sensationalist science headlines, please do so below.)