Residents of the Northeast and the Midwest know that ticks can carry the bacteria that cause Lyme disease. What most don’t know is that the same family of black-legged ticks can also cause other diseases that are even more dangerous.
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The worst is Powassan disease, which generally kills about 10 percent of its victims and leaves half the survivors with permanent neurological damage............
http://www.nytimes.com/2013/08...
