West Nile Virus and Other Mosquito-Borne Disease National Surveillance Report - October 19 to October 25, 2014 and October 26 to November 1, 2014 (Report Weeks 43 and 44)
Summary
West Nile Virus in Canada
Humans: During surveillance week 43 (October 19 to October 25, 2014) and 44 (October 26 to November 1, 2014), no human cases of West Nile virus were reported to the Public Health Agency of Canada.
As of surveillance week 43 and 44, 21 human clinical cases of West Nile virus have been reported in Canada: five in Manitoba [Interlake-Eastern Health Region (1), Prairie Mountain Health Region (2)Footnote *, Southern Health Region (1) and Winnipeg Health Region (1)], 10 in Ontario [Chatham-Kent (1), Halton Region (2), Lambton County (1), City of Ottawa (2), Simcoe-Muskoka District (1) and City of Toronto (3)] and six in Quebec [Lanaudière (1), Montérégie (3) and Montreal (2)].
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Of the 21 human clinical cases, 10 (47.6%) are classified as West Nile virus non-neurological syndrome, nine (42.9%) as West Nile virus neurological syndrome and two (9.5%) as unclassified/unspecified.
One asymptomatic infection has been reported in Ontario: Windsor-Essex County.
Mosquitoes: As of surveillance week 43 and 44, a reported 219 mosquito pools have tested positive for West Nile virus in Canada: 24 in Manitoba [Interlake-Eastern Health Region (7), Prairie Mountain Health Region (1), Southern Health Region (11) and Winnipeg Health Region (5)]; 56 in Ontario [Haliburton-Kawartha-Pine Ridge District (1), Halton Regional (3), City of Hamilton (7), Lambton (1), Middlesex-London (4), Niagara Regional (2), City of Ottawa (3), Peel Regional (22), City of Toronto (10), Windsor-Essex County (1) and York Regional (2)]; 119 in Quebec [Laval (13), Montérégie (42) and Montreal (64)] and 20 in Saskatchewan.
Dead Birds: As of surveillance week 43 and 44, the Canadian Wildlife Health Cooperative tested 121 dead birds for West Nile virus in Canada: Ontario (30), Quebec (21) and Saskatchewan (70). Of these, 16 (13.2%) dead birds have tested positive for West Nile virus in Canada: Ontario (6), Quebec (8) and Saskatchewan (2).
Domestic Animals: As of surveillance week 43 and 44, the Canadian Food Inspection Agency reported 21 horses have tested positive for West Nile virus in Canada: Alberta (7), Manitoba (1), Ontario (1), Quebec (4) and Saskatchewan (8).
West Nile Virus Human Disease Cases in the United States
As of October 28, 2014, the Centers for Disease Control and Prevention (CDC) reported 1,668 West Nile virus human disease cases:
Alabama (2), Arizona (67), Arkansas (6), California (608), Colorado (108), Connecticut (5), District of Columbia (3), Florida (13), Georgia (11), Idaho (18), Illinois (36), Indiana (8), Iowa (12), Kansas (41), Louisiana (111), Maryland (6), Massachusetts (5), Michigan (1), Minnesota (14), Mississippi (45), Missouri (12), Montana (5), Nebraska (120), Nevada (3), New Jersey (7), New Mexico (20), New York (18), North Dakota (22), Ohio (9), Oklahoma (16), Pennsylvania (10), South Carolina (2), South Dakota (57), Tennessee (6), Texas (207), Utah (2), Virginia (6), Washington (12), Wisconsin (8) and Wyoming (5).
Of these, 976 (58.5%) were diagnosed as neuroinvasive disease cases and 692 (41.5%) as non-neuroinvasive disease cases. Fifty-eight fatal cases were reported. Two hundred and seventy-five presumptive viremic blood donors have been identified.
West Nile Fever in the European Union, European Economic Area and Neighbouring Countries
During surveillance week 43, the European Centre for Disease Prevention and Control (ECDC) reported one human case of West Nile fever in Romania. In the neighbouring countries, no cases were reported.
As of October 23, 2014, 74 human cases of West Nile fever have been reported in Europe: Austria (1), Greece (15), Hungary (11), Italy (24) and Romania (23). In the neighbouring countries, 120 human cases were reported: Bosnia and Herzegovina (13), Israel (9), Russian Federation (29) and Serbia (69).
Figure 1. West Nile Virus clinical cases and asymptomatic infections, by Province/Territory and report week, 2014 season
Provinces and Territories | Report week of 2014 | |||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | |
Newfoundland and Labrador | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Prince Edward Island | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Nova Scotia | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
New Brunswick | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Quebec | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
Ontario | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 2 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Manitoba | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1Table 1 - Footnote ** | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Saskatchewan | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Alberta | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
British Columbia | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Yukon Territory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Northwest Territory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Total | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4Table 1 - Footnote * | 3 | 5 | 6 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
Provinces and Territories | Weeks 43 and 44: October 19 to October 25, 2014 and October 26 to November 1, 2014 | |||||
---|---|---|---|---|---|---|
West Nile virus neurological syndrome | West Nile virus non-neurological syndrome | Unclassified/ unspecified | Total clinical casesTable 2 - Footnote 1 |
Number of travel-related casesTable 2 - Footnote 2 | West Nile virus asymptomatic infectionsTable 2 - Footnote 3 | |
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 | 0 | 0 | 0 | 0 | 0 | 0 |
Ontario | 0 | 0 | 0 | 0 | 0 | 0 |
Manitoba | 0 | 0 | 0 | 0 | 0 | 0 |
Saskatchewan | 0 | 0 | 0 | 0 | 0 | 0 |
Alberta | 0 | 0 | 0 | 0 | 0 | 0 |
British Columbia | 0 | 0 | 0 | 0 | 0 | 0 |
Yukon Territory | 0 | 0 | 0 | 0 | 0 | 0 |
Northwest Territory | 0 | 0 | 0 | 0 | 0 | 0 |
Nunavut | 0 | 0 | 0 | 0 | 0 | 0 |
Total | 0 | 0 | 0 | 0 | 0 | 0 |
Year to date: January 1 to November 1, 2014 | ||||||
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 | 5 | 1 | 0 | 6 | 0 | 0 |
Ontario | 3 | 5 | 2 | 10 | 2 | 1 |
Manitoba | 1 | 4Table 2 - Footnote * | 0 | 5Table 2 - Footnote * | 0 | 0 |
Saskatchewan | 0 | 0 | 0 | 0 | 0 | 0 |
Alberta | 0 | 0 | 0 | 0 | 0 | 0 |
British Columbia | 0 | 0 | 0 | 0 | 0 | 0 |
Yukon Territory | 0 | 0 | 0 | 0 | 0 | 0 |
Northwest Territory | 0 | 0 | 0 | 0 | 0 | 0 |
Nunavut | 0 | 0 | 0 | 0 | 0 | 0 |
Total | 9 | 10Table 2 - Footnote * | 2 | 21Table 2 - Footnote * | 2 | 1 |
Figure 2. West Nile Virus clinical cases and asymptomatic infections by report week for selected years
Year | Report week | ||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | |
2014 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4Table 3 - Footnote * | 3 | 5 | 6 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | - | - | - |
2013 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 2 | 1 | 5 | 5 | 8 | 17 | 11 | 13 | 13 | 11 | 9 | 1 | 6 | 1 | 0 | 4 | 1 | 0 | 1 | 0 |
2012 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 5 | 11 | 16 | 27 | 53 | 63 | 57 | 43 | 43 | 45 | 24 | 30 | 14 | 9 | 5 | 1 | 0 | 0 | 0 | 0 |
2007 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 3 | 4 | 11 | 35 | 36 | 72 | 139 | 424 | 471 | 443 | 287 | 182 | 116 | 71 | 30 | 18 | 10 | 11 | 5 | 4 | 2 | 0 | 0 |
2005 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 11 | 28 | 28 | 38 | 45 | 27 | 15 | 7 | 12 | 3 | 3 | 1 | 0 | 0 | 0 |
2003 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 5 | 11 | 9 | 27 | 66 | 249 | 323 | 324 | 178 | 107 | 82 | 37 | 14 | 8 | 4 | 3 | 0 | 0 | 0 |
Provinces and Territories | Report week of 2014 | |||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | |
Newfoundland and Labrador | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Prince Edward Island | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
New Brunswick | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Nova Scotia | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Quebec | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 9 | 10 | 19 | 19Table 4.1 - Footnote ** | 39 | 70 | 99 | 112 | 119 | 119 | 119 | 119 | 119 | 119 |
Ontario | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 9 | 11 | 13 | 30 | 43 | 52 | 56 | 56 | 56 | 56 | 56 | 56 | 56 |
Manitoba | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 7 | 14 | 19 | 22 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
Saskatchewan | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 9 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
Alberta | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
British Columbia | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Yukon Territory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Northwest Territory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Total | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 | 22 | 28 | 53 | 70 | 111 | 157 | 195 | 212 | 219 | 219 | 219 | 219 | 219 | 219 |
Provinces and Territories | Year to date: January 1 to November 1, 2014 | ||
---|---|---|---|
Number of positive mosquito pools | Number of mosquito pools tested | Percentage of positive mosquito pools (%) | |
Quebec | 119 | 11,413 | 1.0 |
Ontario | 56 | 14,116 | 0.4 |
Manitoba | 24 | 1,505 | 1.6 |
Saskatchewan | 20 | 824 | 2.4 |
British Columbia | 0 | 236 | 0 |
Total | 219 | 28,094 | 0.8 |
Figure 3. Reported number of dead birds testing positive for West Nile Virus by Province/Territory and by report week, 2014 seasonFigure 3 - Footnote *
Provinces and Territories | Report week of 2014 | ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | Total | |
Newfoundland and Labrador | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Prince Edward Island | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
New Brunswick | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Nova Scotia | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Quebec | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 8 |
Ontario | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 |
Manitoba | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Saskatchewan | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
Alberta | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
British Columbia | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Yukon Territory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Northwest Territory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Total | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 4 | 0 | 2 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 16 |
Figure 4. Percentage of dead birds testing positive for West Nile Virus in the 2014 season by report week, as compared to the 2003, 2012 and 2013 seasons
Report week of 2014 | ||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 26 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | ||
Numbers positive | 2014 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 4 | 0 | 2 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | - | - | - |
Numbers tested | 2014 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 41Table 6 - Footnote * | 10 | 13 | 9 | 7 | 13 | 6 | 10 | 4 | 1 | 4 | 2 | 1 | 0 | 0 | - | - | - |
Percentage positive | 2014 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 22 | 29 | 31 | 0 | 20 | 75 | 0 | 25 | 0 | 0 | 0 | 0 | - | - | - |
Numbers positive | 2013 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 5 | 2 | 13 | 9 | 6 | 6 | 18 | 9 | 6 | 6 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Numbers tested | 2013 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 2 | 5 | 8 | 5 | 9 | 10 | 29 | 19 | 16 | 16 | 24 | 13 | 9 | 10 | 3 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
Percentage positive | 2013 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 56 | 20 | 45 | 47 | 38 | 38 | 75 | 69 | 67 | 60 | 67 | 0 | 50 | 0 | 0 | 0 | 0 | 0 | 0 |
Percentage positive | 2012 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 33 | 67 | 33 | 67 | 33 | 50 | 67 | 64 | 67 | 33 | 67 | 67 | 55 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Percentage positive | 2003 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 3 | 3 | 6 | 7 | 10 | 17 | 21 | 38 | 35 | 43 | 46 | 45 | 45 | 58 | 29 | 20 | 15 | 8 | 0 | 0 | 0 | 0 |
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