SURVEILLANCE DATA - WEST NILE VIRUS

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2017 Summary by Province

Region Examined Tested Positive Negative
British Columbia 0 0 0 0
Alberta 51 0 0 0
Saskatchewan 75 0 0 0
Manitoba 0 0 0 0
Ontario 77 1 0 1
Quebec 222 0 0 0
New Brunswick 26 0 0 0
Nova Scotia 35 0 0 0
Prince Edward Island 38 0 0 0
Newfoundland and Labrador 0 0 0 0
Yukon Territory 19 0 0 0
Northwest Territories 6 0 0 0
Nunavut 0 0 0 0
TOTAL 549 1 0 1

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Please note that these numbers are based on the date that the specimen was received by the CWHC lab.

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Last Updated: June 8th, 2017

2016 Summary by Province

Region Received Tested Positive Negative
British Columbia 2 2 2 0
Alberta 1 1 0 1
Saskatchewan 9 8 4 4
Manitoba 0 0 0 0
Ontario 80 79 20 59
Quebec 51 51 11 40
New Brunswick 0 0 0 0
Nova Scotia 0 0 0 0
Prince Edward Island 0 0 0 0
Newfoundland and Labrador 0 0 0 0
Yukon Territory 0 0 0 0
Northwest Territories 0 0 0 0
Nunavut 0 0 0 0
TOTAL 143 141 37 104

***

Please note that these numbers are based on the date that the specimen was received by the CWHC lab.

***

Last Updated: February 24, 2017

2015 Summary by Province

Region Received Tested Positive Negative Pending
British Columbia 0 0 0 0 0
Alberta 0 0 0 0 0
Saskatchewan 4 4 1 4 0
Manitoba 0 0 0 0 0
Ontario 48 48 24 24 0
Quebec 42 42 19 22 1
New Brunswick 2 2 0 2 0
Nova Scotia 0 0 0 0 0
Prince Edward Island 0 0 0 0 0
Newfoundland and Labrador 0 0 0 0 0
Yukon Territory 0 0 0 0 0
Northwest Territories 0 0 0 0 0
Nunavut 0 0 0 0 0
TOTAL 97 97 44 52 1

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Please note that these numbers are based on the date that the specimen was received by the CWHC lab.

***

Last Updated: May 29th, 2017

2014 Summary by Province

Region Received Tested Positive Negative Pending
British Columbia 0 0 0 0 0
Alberta 0 0 0 0 0
Saskatchewan 70 70 2 68 0
Manitoba 0 0 0 0 0
Ontario 30 30 6 24 0
Quebec 21 21 8 11 2
New Brunswick 0 0 0 0 0
Nova Scotia 0 0 0 0 0
Prince Edward Island 0 0 0 0 0
Newfoundland and Labrador 0 0 0 0 0
Yukon Territory 0 0 0 0 0
Northwest Territories 0 0 0 0 0
Nunavut 0 0 0 0 0
TOTAL 121 121 16 103 2

2014 Summary by Species

Species Received Tested Positive Negative Pending
American Crow 41 41 6 35 0
American Kestrel 1 1 0 1 0
Bald Eagle 1 1 0 1 0
Black-billed Magpie 7 7 0 7 0
Blue Jay 3 3 1 2 0
Broad-winged Hawk 3 3 1 1 1
Canada Goose 1 1 0 1 0
Common Nighthawk 1 1 0 1 0
Common Raven 1 1 0 1 0
Cooper's Hawk 6 6 1 5 0
Eastern Gray Squirrel 1 1 0 1 0
Eastern Screech Owl 1 1 0 1 0
Ferruginous Hawk 1 1 0 1 0
Goshawk 3 3 1 1 1
Great Black-backed Gull 1 1 0 1 0
Great Horned Owl 13 13 1 12 0
House Sparrow 2 2 0 2 0
Loggerhead Shrike 1 1 0 1 0
Long-Eared Owl 1 1 0 1 0
Merlin 11 11 0 11 0
Northern Flicker 1 1 0 1 0
Northern Harrier 2 2 1 1 0
Osprey 1 1 0 1 0
Prairie Falcon 1 1 0 1 0
Red-tailed Hawk 7 7 3 4 0
Ruby-throated Hummingbird 1 1 0 1 0
Sharp-shinned Hawk 2 2 1 1 0
Short-Eared Owl 1 1 0 1 0
Swainson's Hawk 4 4 0 4 0
TOTAL 121 121 16 103 2

***

Please note that these numbers are based on the date that the specimen was received by the CWHC lab.

***

Last Updated: November 12, 2014

2013 Summary by Province

Region Received Tested Positive Negative Pending
British Columbia 1 1 1 0 0
Alberta 1 1 1 0 0
Saskatchewan 53 53 13 40 0
Manitoba 2 2 2 0 0
Ontario 73 73 34 39 0
Quebec 63 63 36 25 2
New Brunswick 5 5 0 5 0
Nova Scotia 0 0 0 0 0
Prince Edward Island 0 0 0 0 0
Newfoundland and Labrador 0 0 0 0 0
Yukon Territory 3 3 0 3 0
Northwest Territories 0 0 0 0 0
Nunavut 0 0 0 0 0
TOTAL 201 201 87 112 2

2013 Summary by Species

Species Received Tested Positive Negative Pending
American Black Bear 1 1 0 1 0
American Crow 64 64 31 32 1
American Kestrel 3 3 1 2 0
American Robin 1 1 1 0 0
Bald Eagle 2 2 0 2 0
Barred Owl 2 2 1 1 0
Black-billed Magpie 3 3 1 2 0
Blue Jay 4 4 1 3 0
Broad-Winged Hawk 4 4 3 1 0
Canada Goose 1 1 1 0 0
Common Grackle 3 3 0 3 0
Common Raven 4 4 0 4 0
Cooper's Hawk 10 10 7 3 0
Double-Crested Cormorant 1 1 1 0 0
Eastern Chipmunk 1 1 0 1 0
Goshawk 6 6 5 1 0
Great Blue Heron 2 2 0 2 0
Great Gray Owl 3 3 2 1 0
Great Horned Owl 14 14 2 12 0
Loggerhead Shrike 9 9 3 6 0
Mallard 6 6 4 2 0
Merlin 20 20 5 14 1
Northern Flicker 1 1 0 1 0
Northern Saw-Whet Owl 1 1 0 1 0
Osprey 1 1 0 1 0
Peregrine Falcon 1 1 0 1 0
Purple Martin 3 3 0 3 0
Red-Shouldered Hawk 1 1 1 0 0
Red-tailed Hawk 16 16 7 9 0
Ring-Billed Gull 2 2 1 1 0
Rusty Blackbird 1 1 0 1 0
Sharp-Shinned Hawk 8 8 8 0 0
Swainson's Hawk 1 1 1 0 0
Whip-Poor-Will 1 1 0 1 0
TOTAL 201 201 87 112 2

***

Please note that these numbers are based on the date that the specimen was received by the CCWHC lab.

***

Last Updated: January 10, 2014

2012 Summary by Province

Region Received Tested Positive Negative Pending
British Columbia 10 10 0 10 0
Alberta 1 1 0 1 0
Saskatchewan 15 15 1 14 0
Manitoba 3 3 1 2 0
Ontario 66 66 35 31 0
Quebec 52 52 36 16 0
New Brunswick 1 1 0 1 0
Nova Scotia 1 1 0 1 0
Prince Edward Island 0 0 0 0 0
Newfoundland and Labrador 0 0 0 0 0
Yukon Territory 0 0 0 0 0
Northwest Territories 1 1 0 1 0
Nunavut 0 0 0 0 0
TOTAL 150 150 73 77 0

2012 Summary by Species

Species Received Tested Positive Negative Pending
American Black Bear 1 1 0 1 0
American Crow 49 49 36 13 0
Bald Eagle 4 4 1 3 0
Barn Swallow 1 1 1 0 0
Barred Owl 1 1 1 0 0
Black-billed Magpie 1 1 0 1 0
Blue Jay 12 12 7 5 0
Brewer's Blackbird 1 1 0 1 0
Broad-Winged Hawk 1 1 1 0 0
Canada Goose 4 4 2 2 0
Common Eider 1 1 0 1 0
Common Loon 1 1 0 1 0
Cooper's Hawk 4 4 3 1 0
Double-Crested Cormorant 1 1 0 1 0
Eastern Screech-Owl 1 1 0 1 0
Eastern Chipmunk 1 1 0 1 0
Eastern Gray Squirrel 4 4 0 4 0
European Starling 1 1 0 1 0
Goshawk 2 2 1 1 0
Great Horned Owl 8 8 3 5 0
Horned Grebe 1 1 0 1 0
Laridae (Unknown Gull) 1 1 0 1 0
Mallard 3 3 1 2 0
Merlin 9 9 5 4 0
Northern Flicker 2 2 0 2 0
Northern Saw-Whet Owl 3 3 3 0 0
Northwestern Crow 9 9 0 9 0
Osprey 1 1 0 1 0
Red-Shouldered Hawk 1 1 1 0 0
Red-Tailed Hawk 7 7 3 4 0
Ring-Billed Gull 1 1 0 1 0
Rock Pigeon 1 1 0 1 0
Sharp-Shinned Hawk 5 5 5 0 0
Strigiformes (Owl) 1 1 0 1 0
Swainson's Hawk 1 1 0 1 0
Trumpeter Swan 1 1 0 1 0
Turkey Vulture 1 1 0 1 0
White-Winged Scoter 1 1 0 1 0
Whooping Crane 1 1 0 1 0
TOTAL 150 150 73 77 0

***

Please note that these numbers are based on the date that the specimen was received by the CCWHC lab.

***

Last Updated: January 31, 2013

2011 Summary by Province

Region Received Tested Positive Negative Pending
British Columbia 52 50 0 50 0
Alberta 0 0 0 0 0
Saskatchewan 14 12 1 11 0
Manitoba 4 4 0 4 0
Ontario 133 130 49 78 3
Quebec 38 38 29 9 0
New Brunswick 1 1 0 1 0
Nova Scotia 0 0 0 0 0
Prince Edward Island 1 1 0 1 0
Newfoundland and Labrador 0 0 0 0 0
Yukon Territory 0 0 0 0 0
Northwest Territories 2 2 0 2 0
Nunavut 0 0 0 0 0
TOTAL 245 238 79 156 3

2011 Summary by Species

Species Received Tested Positive Negative Pending
American Crow 65 64 47 17 0
American Kestrel 2 2 2 0 0
Bald Eagle 4 4 0 4 0
Barn Owl 1 1 0 1 0
Barn Swallow 1 1 0 1 0
Black-billed Magpie 9 8 0 8 0
Blackburnian Warbler 1 1 0 1 0
Black-throated Green Warbler 1 1 0 1 0
Blue Jay 4 4 1 3 0
Broad-Winged Hawk 2 2 1 1 0
Brown Creeper 1 1 0 1 0
Burrowing Owl 1 1 0 1 0
California Quail 2 2 0 2 0
Canada Goose 2 1 0 1 0
Canada Warbler 10 10 0 10 0
Cedar Waxwing 1 1 0 1 0
Chestnut-sided Warbler 1 1 0 1 0
Common Grackle 1 1 0 1 0
Common Raven 4 4 1 3 0
Cooper's Hawk 4 4 1 3 0
Dark-eyed Junco 1 1 0 1 0
Ferruginous Hawk 1 1 0 1 0
Golden Eagle 1 0 0 0 0
Golden-crowned Kinglet 4 4 0 4 0
Goshawk 2 2 2 0 0
Gray Seal 1 1 0 1 0
Great Blue Heron 3 3 0 3 0
Great Grey Owl 2 2 2 0 0
Great Horned Owl 15 15 7 8 0
Hermit Thrush 1 1 0 1 0
House Sparrow 8 8 0 8 0
Lesser Black-backed Gull 1 1 0 1 0
Loggerhead Shrike 13 12 1 8 3
Magnolia Warbler 1 1 0 1 0
Merlin 14 13 8 5 0
Nashville Warbler 1 1 0 1 0
Northern Flicker 1 1 0 1 0
Northern Harrier 1 1 0 1 0
Northwestern Crow 31 30 0 30 0
Olive-sided Flycatcher 1 1 0 1 0
Peregrine Falcon 3 3 0 3 0
Red-Shouldered Hawk 2 2 2 0 0
Red-tailed Hawk 3 3 0 3 0
Ring-billed Gull 2 2 0 2 0
Rock Pigeon 3 3 0 3 0
Rose-brested Grosbeak 1 1 0 1 0
Ruffed Grouse 1 1 0 1 0
Song Sparrow 1 1 0 1 0
Sharp-Shinned Hawk 5 5 4 1 0
Swainson's Hawk 1 1 0 1 0
Swainson's Thrush 1 1 0 1 0
Unknown Songbird 1 1 0 1 0
TOTAL 245 238 79 156 3

Last Updated: May 28, 2012

2010 Summary by Province

Region Received Tested Positive Negative Pending
British Columbia 244 236 5 231 0
Alberta 2 2 0 2 0
Saskatchewan 6 6 1 5 0
Manitoba 2 2 0 2 0
Ontario 121 121 16 105 0
Quebec 6 6 2 4 0
New Brunswick 0 0 0 0 0
Nova Scotia 0 0 0 0 0
Prince Edward Island 0 0 0 0 0
Newfoundland and Labrador 0 0 0 0 0
Yukon Territory 0 0 0 0 0
Northwest Territories 0 0 0 0 0
Nunavut 0 0 0 0 0
TOTAL 381 373 24 349 0

2010 Summary by Species

Species Received Tested Positive Negative Pending
American Coot 1 1 0 1 0
American Crow 270 262 16 246 0
American Robin 1 1 0 1 0
American Tree Sparrow 1 1 0 1 0
Bald Eagle 3 3 0 3 0
Barn Owl 1 1 0 1 0
Barred Owl 2 2 1 1 0
Black-billed Magpie 5 5 1 4 0
Blue Jay 8 8 3 5 0
Canada Goose 7 7 0 7 0
Common Grackle 2 2 0 2 0
Common Raven 3 3 0 3 0
Cooper's Hawk 2 2 1 1 0
Double-crested Cormorant 13 13 0 13 0
Great Horned Owl 5 5 0 5 0
Herring Gull 1 1 0 1 0
Loggerhead Shrike 39 39 0 39 0
Northern Harrier 1 1 0 1 0
Northern Saw-whet Owl 1 1 0 1 0
Northwestern Crow 1 1 0 1 0
Osprey 1 1 0 1 0
Ovenbird 1 1 0 1 0
Red-tailed Hawk 2 2 1 1 0
Ring-billed Gull 2 2 0 2 0
Sharp-shinned Hawk 2 2 1 1 0
Tree Swallow 4 4 0 4 0
Trumpeter Swan 1 1 0 1 0
Wild Turkey 1 1 0 1 0
TOTAL 381 373 24 349 0

Last Updated: May 25, 2011

2009 Summary by Province

Region Received Tested Positive Negative Pending
British Columbia 166 159 0 159 0
Alberta 0 0 0 0 0
Saskatchewan 21 21 4 17 0
Manitoba 0 0 0 0 0
Ontario 194 190 6 184 0
Quebec 5 5 0 5 0
New Brunswick 1 1 0 1 0
Nova Scotia 21 21 0 21 0
Prince Edward Island 37 37 0 37 0
Newfoundland and Labrador 0 0 0 0 0
Yukon Territory 0 0 0 0 0
Northwest Territories 1 1 0 1 0
Nunavut 1 1 0 1 0
TOTAL 447 436 10 426 0

2009 Summary by Species

Species Received Tested Positive Negative Pending
American Crow 275 267 6 261 0
American Robin 8 8 0 8 0
American Woodcock 1 1 0 1 0
Bald Eagle 3 3 0 3 0
Barn Swallow 2 2 0 2 0
Blue Jay 19 19 0 19 0
Blue-winged Warbler 1 1 0 1 0
Boreal Owl 2 2 0 2 0
Canada Goose 2 2 0 2 0
Cliff Swallow 1 1 0 1 0
Common Grackle 2 2 0 2 0
Common Loon 1 1 0 1 0
Common Raven 12 12 0 12 0
Cooper's Hawk 1 1 0 1 0
Double-crested Cormorant 4 4 0 4 0
Dunlin 2 2 0 2 0
European Starling 6 6 0 6 0
Ferruginous Hawk 1 1 0 1 0
Great Black-backed Gull 1 1 0 1 0
Great Horned Owl 2 2 0 2 0
Hairy Woodpecker 1 1 0 1 0
Harris's Hawk 2 2 0 2 0
Hermit Thrush 2 2 0 2 0
Herring Gull 1 1 0 1 0
House Finch 2 2 0 2 0
House Sparrow 1 1 0 1 0
Least Flycather 1 1 0 1 0
Loggerhead Shrike 23 23 0 23 0
Mallard 6 6 0 6 0
Merlin 2 2 2 0 0
Mute Swan 1 1 0 1 0
Northern Flicker 2 2 0 2 0
Northern Saw-Whet Owl 1 1 0 1 0
Osprey 3 3 0 3 0
Owl 2 2 0 2 0
Pine Siskin 1 1 0 1 0
Pine Warbler 1 1 0 1 0
Purple Finch 4 4 0 4 0
Red-necked Grebe 1 1 0 1 0
Red-tailed Hawk 6 6 2 4 0
Ring-billed Gull 9 7 0 7 0
Rock Dove 4 4 0 4 0
Rose-breasted Grosbeak 1 1 0 1 0
Ruffed Grouse 1 1 0 1 0
Savannah Sparrow 1 1 0 1 0
Sharp-shinned Hawk 1 1 0 1 0
Stellar's Jay 9 9 0 9 0
Swainson's Hawk 1 1 0 1 0
Swainson's Thrush 1 1 0 1 0
Turkey Vulture 2 2 0 2 0
Unknown 1 0 0 0 0
White-winged Scoter 5 5 0 5 0
Wild Turkey 1 1 0 1 0
Wilson's Warbler 1 1 0 1 0
TOTAL 447 436 10 426 0

Last Updated: June 01, 2011

Overall Summary by Province

 
 
BC
AB
SK
MB
ON
QC
NB
NS
PE
NL
YT
NT
NU
TOTAL
2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 TOTAL
Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive Tested Positive
2 2 0 0 0 0 1 1 10 0 50 0 236 5 310 0 215 0 766 0 841 0 1120 0 1470 0 1943 0 805 0 0 0 0 0
1 0 0 0 0 0 1 1 1 0 0 0 2 0 0 0 0 0 0 0 86 12 215 6 673 9 1869 437 74 0 4 0 0 0
6 3 4 1 71 2 53 13 15 1 12 1 6 1 21 4 0 0 263 60 658 5 130 14 399 29 1192 157 564 44 61 0 0 0
0 0 0 0 1 0 2 2 3 1 4 0 2 0 0 0 0 0 0 0 1 0 174 12 337 16 943 152 3327 88 274 0 0 0
77 17 47 23 31 6 73 34 66 35 130 49 121 16 194 6 801 150 772 79 986 256 1328 300 1548 251 2217 255 13240 294 4722 128 0 0
44 11 42 19 26 10 63 36 52 36 38 29 6 2 5 0 0 0 0 0 0 0 555 115 898 112 2711 846 2711 139 964 0 0 0
0 0 2 0 0 0 5 0 1 0 1 0 0 0 1 0 62 0 268 0 325 0 259 0 535 0 886 6 712 0 325 0 0 0
0 0 0 0 0 0 0 0 1 0 0 0 0 0 21 0 44 0 63 0 140 0 205 0 476 0 970 17 489 4 276 0 0 0
0 0 0 0 0 0 0 0 0 0 1 0 0 0 37 0 95 0 108 0 109 0 86 0 116 0 273 0 72 0 64 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 73 0 0 0 2 0 0 0 0 0 0 0
0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 9 0 0 0 14 0 30 0 0 0 0 0 0 0
0 0 0 0 1 0 0 0 1 0 2 0 0 0 1 0 0 0 0 0 13 0 7 0 12 0 23 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 0 3 0 0 0 0 0 0 0
130 33 96 43 130 18 201 87 150 73 238 79 373 24 591 10 1217 150 2240 139 3168 273 4152 447 6480 417 13062 1870 21994 569 6690 128 0 0

* Last updated 2016-11-04