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West Nile Virus MONITOR 2002

 Human West Nile Virus Clinical Cases and Asymptomatic Infections in Canada: 2002 
Province/Territory
Neurological
Syndrome5
Non-
Neurological
Syndrome5
Unclassified/
Unspecified
 Total
Asymptomatic
Infection4
Newfoundland and Labrador
0
0
0
0
0
Prince Edward Island
0
0
0
0
0
Nova Scotia
0
0
0
0
0
New Brunswick
0
0
0
0
0
Quebec
16
0
4
20
0
Ontario1
243
18
133
3943
0
Manitoba
0
0
0
0
0
Saskatchewan
0
0
0
0
0
Alberta
0
0
0
0
0
British Columbia
0
0
0
0
0
Yukon
0
0
0
0
0
Northwest Territories
0
0
0
0
0
Nunavut
0
0
0
0
0
Total2
259
18
137
414
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 screen test result.

5  In 2002,  WNV Non-Neurological Syndrome was called West Nile Fever (WNF); WNV Neurological Syndrome was called WNV encephalitis including aseptic meningitis and encephalitis.