Public Health Agency of Canada
www.publichealth.gc.ca
West Nile Virus MONITOR
Human Surveillance (2008-2010)
Total2 Reported West Nile Virus Clinical Cases and Asymptomatic Infections (WNAI4) in Canada: 2008-2010 |
||||||||||||
| Province/Territory | 2008 |
2009 |
2010 |
|||||||||
Total2 |
WNAI4 |
Total2 |
WNAI4 |
Total2 |
WNAI4 |
|||||||
| Newfoundland and Labrador | 0 |
0 |
0 |
0 |
0 |
0 |
||||||
| Prince Edward Island | 0 |
0 |
0 |
0 |
0 |
0 |
||||||
| Nova Scotia | 0 |
0 |
0 |
0 |
0 |
0 |
||||||
| New Brunswick | 0 |
0 |
0 |
0 |
0 |
0 |
||||||
| Quebec | 2 |
1 |
1 |
0 |
0 |
0 |
||||||
| Ontario1 | 3 |
1 |
4 |
0 |
1 |
0 |
||||||
| Manitoba | 12 |
0 |
2 |
0 |
0 |
0 |
||||||
| Saskatchewan | 173 |
0 |
1 |
0 |
2 |
0 |
||||||
| Alberta1 | 15 | 0 |
2 | 0 |
1 | 0 |
||||||
| British Columbia | 15 | 0 |
3 | 0 |
1 | 0 |
||||||
| Yukon | 0 |
0 |
0 |
0 |
0 |
0 |
||||||
| Northwest Territories | 0 |
0 |
0 |
0 |
0 |
0 |
||||||
| Nunavut | 0 |
0 |
0 |
0 |
0 |
0 |
||||||
| Total2 | 36 |
2 |
13 |
0 |
5 |
0 |
||||||
1 These totals include both probable and confirmed WNV cases. 2 Total clinical cases is the sum of WNV Neurological Syndrome + WNV Non-Neurological Syndrome + WNV Unclassified/Unspecified. 3 These totals include some cases related to travel outside the province/ territory. 4 Satisfies West Nile virus diagnostic test criteria IN THE ABSENCE of clinical criteria.This category could include asymptomatic blood donors whose blood is screened using a Nucleic Acid Amplification Test (NAT), by Blood Operators (i.e. Canadian Blood Services or Hema-Quebec) and is subsequently brought to the attention of public health officials. Blood Operators in Canada perform a supplementary WN virus-specific NAT following any positive donor test result. 5 All related to travel outside the province/ territory. 6 In 2002-2004, WNV Non-Neurological Syndrome was called West Nile Fever (WNF). In 2002, WNV Neurological Syndrome was called WNV encephalitis including aseptic meningitis and encephalitis. |
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Human Surveillance (2002-2007)
Total2 Reported West Nile Virus Clinical Cases and Asymptomatic Infections (WNAI4) in Canada: 2002-2007 |
|||||||||||||
| Province/Territory | 20026 |
20036 |
20046 |
2005 |
2006 |
2007 |
|||||||
Total2 |
WNAI4 |
Total2 |
WNAI4 |
Total2 |
WNAI4 |
Total2 |
WNAI4 |
Total2 |
WNAI4 |
Total2 |
WNAI4 |
||
| Newfoundland and Labrador | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
| Prince Edward Island | 0 |
0 |
0 |
0 |
0 |
0 |
15 |
0 |
0 |
0 |
0 |
0 |
|
| Nova Scotia | 0 |
0 |
25 |
0 |
0 |
0 |
15 |
0 |
0 |
0 |
15 |
0 |
|
| New Brunswick | 0 |
0 |
15 |
0 |
0 |
0 |
15 |
0 |
0 |
0 |
0 |
0 |
|
| Quebec | 20 |
0 |
17 |
0 |
33 |
0 |
4 |
1 |
1 |
0 |
25 |
0 |
|
| Ontario1 | 3943 |
0 |
893 |
0 |
133 |
1 |
953 |
6 |
423 |
0 |
123 |
3 |
|
| Manitoba | 0 |
0 |
1423 |
1 |
3 |
0 |
55 |
3 |
50 |
1 |
578 |
9 |
|
| Saskatchewan | 0 |
0 |
9373 |
10 |
53 |
0 |
583 |
3 |
193 |
1 |
12853 |
171 |
|
| Alberta1 | 0 |
0 |
2723 |
3 |
15 |
0 |
103 |
0 |
393 |
1 |
3183 | 3 |
|
| British Columbia | 0 |
0 |
205 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
195 | 0 |
|
| Yukon | 0 |
0 |
15 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
| Northwest Territories | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
| Nunavut | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
| Total2 | 414 |
0 |
1481 |
14 |
25 |
1 |
225 |
13 |
151 |
3 |
2215 |
186 |
|
1 These totals include both probable and confirmed WNV cases. 2 Total clinical cases is the sum of WNV Neurological Syndrome + WNV Non-Neurological Syndrome + WNV Unclassified/Unspecified. 3 These totals include some cases related to travel outside the province/ territory. 4 Satisfies West Nile virus diagnostic test criteria IN THE ABSENCE of clinical criteria.This category could include asymptomatic blood donors whose blood is screened using a Nucleic Acid Amplification Test (NAT), by Blood Operators (i.e. Canadian Blood Services or Hema-Quebec) and is subsequently brought to the attention of public health officials. Blood Operators in Canada perform a supplementary WN virus-specific NAT following any positive donor test result. 5 All related to travel outside the province/ territory. 6 In 2002-2004, WNV Non-Neurological Syndrome was called West Nile Fever (WNF). In 2002, WNV Neurological Syndrome was called WNV encephalitis including aseptic meningitis and encephalitis. |
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