Human West Nile Virus Clinical Cases and Asymptomatic Infections in Canada: 2003 |
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Province/Territory | Neurological Syndrome |
Non- Neurological Syndrome6 |
Unclassified/ Unspecified |
Total2 |
Asymptomatic Infection4 |
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Newfoundland and Labrador | 0 |
0 |
0 |
0 |
0 |
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Prince Edward Island | 0 |
0 |
0 |
0 |
0 |
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Nova Scotia | 1 |
1 |
0 |
25 |
0 |
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New Brunswick | 0 |
1 |
0 |
15 |
0 |
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Quebec | 14 |
3 |
0 |
17 |
0 |
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Ontario1 | 47 |
42 |
0 |
893 |
0 |
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Manitoba | 35 |
107 |
0 |
1423 |
1 |
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Saskatchewan | 63 |
858 |
16 |
9373 |
10 |
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Alberta1 | 48 |
224 |
0 |
2723 |
3 |
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British Columbia | 9 |
11 |
0 |
205 |
0 |
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Yukon | 0 |
1 |
0 |
15 |
0 |
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Northwest Territories | 0 |
0 |
0 |
0 |
0 |
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Nunavut | 0 |
0 |
0 |
0 |
0 |
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Total2 | 217 |
1248 |
16 |
1481 |
14 |
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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 screen test result. 5 All related to travel outside the province/ territory. 6 In 2003, WNV Non-Neurological Syndrome was called West Nile Fever (WNF). |