Encephalitis — Worldwide/Unknown
Two viruses that have never been seen in New Hampshire before have shown up in the same person.
The state public health department says a man from Hillsborough County has tested positive for both the Jamestown Canyon virus, which is transmitted by infected mosquitoes, and the Powassan virus, which is carried by ticks.
Public health director Dr. Jose Montero says both viruses have been around the United States for a while, and the Powassan virus has been found in Maine and Vermont, so the
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