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West Nile Virus MONITOR 2003

Human West Nile Virus Clinical Cases and Asymptomatic Infections in Canada: 2003  
Province/Territory
Neurological
Syndrome
Non-
Neurological
Syndrome
6
Unclassified/
Unspecified
Total2 
Asymptomatic
Infection4
Newfoundland and Labrador
0
0
0
0
0
Prince Edward Island
0
0
0
0
0
Nova Scotia
1
1
0
25
0
New Brunswick
0
1
0
15
0
Quebec
14
3
0
17
0
Ontario1
47
42
0
893
0
Manitoba
35
107
0
1423
1
Saskatchewan
63
858
16
9373
10
Alberta1
48
224
0
2723
3
British Columbia
9
11
0
205
0
Yukon
0
1
0
15
0
Northwest Territories
0
0
0
0
0
Nunavut
0
0
0
0
0
Total2
217
1248
16
1481
14

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).