New Hampshire health officials announced Thursday that an adult from Kingston has tested positive for Jamestown Canyon virus and Powassan virus.Jamestown Canyon virus is spread by infected mosquitoes. Most cases are mild, but it can result in moderate to severe impacts to the nervous system.>> Download the FREE WMUR appInfected ticks, meanwhile, spread Powassan virus. Symptoms are mild for most people, but it can cause potentially deadly brain inflammation.>> Fact sheets from NH DHHS: Powassan virus (.pdf) | Jamestown Canyon virus (.pdf)"From spring until fall, New Hampshire residents and visitors are at risk for a number of different infections from the bite of mosquitoes and ticks, and this case highlights the risk from both," Dr. Benjamin Chan, state epidemiologist, said in a statement. “In addition to Jamestown Canyon virus and Powassan virus, there are a number of other viral and bacterial infections that can be transmitted by mosquitoes and ticks in New Hampshire, and we recommend that residents and visitors continue to take basic steps to prevent mosquito and tick bites in order to stay healthy.”Officials said the adult had no recent travel outside of New Hampshire but has spent a great amount of time outdoors. Including Thursday’s announced cases, there have been seven cases of Jamestown Canyon virus and four cases of Powassan virus in New Hampshire since 2013.Raw video: Dr. Chan discusses what the viruses are and how they can be prevented:

New Hampshire health officials announced Thursday that an adult from Kingston has tested positive for Jamestown Canyon virus and Powassan virus.



Jamestown Canyon virus is spread by infected mosquitoes. Most cases are mild, but it can result in moderate to severe impacts to the nervous system.

Advertisement Related Content Raw: State epidemiologist discusses JCV, Powassan diagnoses

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Infected ticks, meanwhile, spread Powassan virus. Symptoms are mild for most people, but it can cause potentially deadly brain inflammation.

>> Fact sheets from NH DHHS: Powassan virus (.pdf) | Jamestown Canyon virus (.pdf)

"From spring until fall, New Hampshire residents and visitors are at risk for a number of different infections from the bite of mosquitoes and ticks, and this case highlights the risk from both," Dr. Benjamin Chan, state epidemiologist, said in a statement. “In addition to Jamestown Canyon virus and Powassan virus, there are a number of other viral and bacterial infections that can be transmitted by mosquitoes and ticks in New Hampshire, and we recommend that residents and visitors continue to take basic steps to prevent mosquito and tick bites in order to stay healthy.”

Officials said the adult had no recent travel outside of New Hampshire but has spent a great amount of time outdoors.

Including Thursday’s announced cases, there have been seven cases of Jamestown Canyon virus and four cases of Powassan virus in New Hampshire since 2013.

Raw video: Dr. Chan discusses what the viruses are and how they can be prevented: