|   |  |   |  |       Vertebrate (species and organ) and arthropod       |       No. isolations/No. tested       |       No. with antibody/No. tested Test used       |       Country and region       | 
|---|
 
  |  
  |  | Man      |       1/1       |       1/1,008 NT       | Powassan,    Ontario,    Canada (1,    3)     |  | Man     |       0/174       |       0/174 NT       | Black Hills,    S.Dakota,    USA (4)     |  | Man     |   |       4/1,936 NT       | British Columbia,    Canada (5)     |  | Man     |       1/1 HI,NT       |       Sherbrooke, Quebec, Canada (20)        |  |  | Man     |       1/1       |       4/4 HI,CF       | Upstate New York,    USA (21,    26)     |  | Man     |   |       1/1 HI,CF       | Pennsylavania,    USA(25)     |  | Marmota monax (woodchuck)     |       2/708       |       518/1,709 NT       | Powassan,    Ontario,    Canada (6-9)     |  | M. monax     |       3       |   | Upstate New York,    USA (15)     |  | M. flaviventris     |   |       97/684 NT       | British Columbia,    Canada (11-14)     |  | Tamiasciurus hudsonicus (squirrel)     |       1/252       |       42/303 NT       | Powassan,    Ontario,    Canada (10)     |  | T. hudsonicus     |   |       92/449 HI       | British Columbia,    Canada (11-14)     |  | Peromyscus sp. (deer mice)     |       1/49       |       24/133 NT       | Black Hills,    S.Dakota,    USA (4)     |  | Microtus sp. (meadow mice     |   |       15/113 NT       |  |  | Eutamias sp. (chipmunk)     |   |       9/119 NT       |  |  | Foxes     |       1       |       8/9 NT       | Upstate New York,    USA (16)     |  | Racoons, M. mephetis (spotted skunk)     |   |       4/22 NT       | Upstate New York,    USA (16)     |  | Ixodes marxi ticks     |       1/58       |   | Powassan,    Ontario,    Canada (10)     |  | I. cookei     |       18/279       |   | Powassan,    Ontario,    Canada (7-9)     |  | I. cookei     |       2       |   | Upstate New York,    USA (15)     |  | I. cookei     |       1       |   | Berkeley,    Massachusett USA (23)     |  | I. spinipalpus     |       1/334       |   | Black Hills,    S.Dakota,    USA (4)     |  | Dermacentor andersoni     |       1/175       |  |  |  | D. andersoni     |       1/100       |   | Weld Co.,    Colorado,    USA (24)     |  | Haemaphysalis neumanii     |       1/16,000       |   | So. Primorye region,    USSR (22)     |  | Spotted skunk (blood)     |       1;1       |   | CA (18); Berkeley,    MA,    USA (23)     |  | Man (blood)     |       1       |       4.3%/117       | Primorski krai,    USSR (30)     |  | Anopheles hyrcanus     |       5       |   | USSR (33)     |  | Aedes togoi     |       2       |  |  |   |  |  |  |  |  
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