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West Nile Virus MONITOR 2007

Human West Nile Virus Clinical Cases and Asymptomatic Infections in Canada: 2007
Province/Territory
Neurological
Syndrome
Non-
Neurological
Syndrome
Unclassified/
Unspecified
Total2 
Asymptomatic
Infection4
Newfoundland and Labrador 0 0 0 0 0
Prince Edward Island 0 0 0 0 0
Nova Scotia 0 0 1 15 0
New Brunswick 0 0 0 0 0
Quebec 2 0 0 25 0
Ontario1 1 11 0 123 3
Manitoba 72 501 5 578 9
Saskatchewan 113 1172 0 12853 171
Alberta1 21 297 0 3183 3
British Columbia 8 10 1 195 0
Yukon 0 0 0 0 0
Northwest Territories 0 0 0 0 0
Nunavut 0 0 0 0 0
Total2 217 1991 7 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 screen test result. 

5  All related to travel outside the province/ territory.