For instance, Powassan virus
, a tickborne pathogen endemic to the northern United States and Canada and therefore not included in the core algorithm of the Tennessee Unexplained Encephalitis Project, was diagnosed in a patient from New York who became ill during a trip to Tennessee, underscoring the importance of a thorough travel history to guide laboratory evaluation (10).
gov/ncezid/dvbd/), the Chikungunya virus and West Nile from mosquitoes and Lyme disease and Powassan virus
from infected ticks (cdc.
The CDC reports there have now been 65 cases of Powassan Virus
confirmed in the US, with 5 cases in Massachusetts that have all occurred within the past two years.
Five cases of Powassan virus
, which is transmitted by the black-legged or deer tick, which also causes Lyme disease, have been reported in the state between 2013 and 2014, Dr.
Positive for viruses such as CMV; HHV-6; Coxsackie B types 1, 2, 3, 4, 5, 6; parvo B19; or Powassan virus
At the same meeting of the ASTMH, New York Medical College researcher Marc El Khoury reported that many cases previously attributed to Powassan virus
are actually more likely caused by the deer tick virus.
The primary lineage of Powassan virus
is carried by a tick (Ixodes cookei) that feeds on the woodchuck (groundhog) and other small mammals, including squirrels and chipmunks, Dr.
Less common but potentially serious tickborne infections include anaplasmosis, babesiosis, ehrlichiosis, spotted fever group rickettsioses, and Powassan virus
Tick-borne Lyme disease causes more than 300,000 estimated human illnesses annually along with other rickettsial diseases, such as Powassan virus
, Rocky Mountain spotted fever (RMSF), ehrlichiosis , and anaplasmosis , are responsible for more than 4,000 U.
NEW YORK -- Surveillance for West Nile virus in the northeastern United States has revealed the continuing emergence of encephalitis caused by another flavivirus: Powassan virus
In addition to the continued challenge of WNV to financially stressed arbovirus surveillance systems, there is the growing threat of other arboviral diseases, such as dengue (14), chikungunya (15-17), and Powassan virus