SURVEILLANCE DATA - WHITE NOSE SYNDROME

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REPORTS

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2016/17 Summary by Province

November 1st, 2016 - January 31st, 2017

Region Submitted Tested Positive1 Suspect2 Negative3 Pending
Alberta 1 1     1  
British Columbia            
Manitoba            
New Brunswick 7 7       7
Newfoundland & Labrador            
Northwest Territories            
Nova Scotia            
Nunavut            
Ontario            
Prince Edward Island 2 2       2
Quebec            
Saskatchewan 1 1       1
Yukon Territory            
TOTAL 11 11     1 10

Last Updated: January 6, 2017

2015/16 Summary by Province

Region November 1st, 2015 - May 31st, 2016
Surveillance for the Disease WNS

New Confirmed Counties

Environmental Detection of Pd New Suspect Counties
Submitted Tested Positive1 Suspect2 Negative3 Pending Present4 Not Detected5 Pending
      a b c d          
Alberta 2 2           2   0   1   0
British Columbia 34 34           34   0   1   0
Manitoba                   0       0
New Brunswick 13 13 1   6     6   0       0
Newfoundland & Labrador                   0   3   0
Northwest Territories                   0       0
Nova Scotia 9 9 9             1   1   0
Nunavut                   0       0
Ontario 17 10 2   7     1   0       0
Prince Edward Island 2 2 2             0       0
Quebec 8 8     1     7   0 6 6   0
Saskatchewan 24 24           24   0       0
Yukon Territory 1 1           1   0       0
TOTAL 110 103 14 0 14 0 0 75   1 6 12   0

Last Updated: October 4, 2016

2015 Summary by Province

Region November 1st, 2014 - May 31st, 2015
Surveillance for the Disease WNS

New Confirmed Counties

Environmental Detection of Pd New Suspect Counties
Submitted Tested Positive1 Suspect2 Negative3 Pending Present4 Not Detected5 Pending
      a b c d          
Alberta 0                 0        
British Columbia 5 5           5   0   26   0
Manitoba 0                 0       0
New Brunswick 8 8 1         7   0       0
Newfoundland & Labrador 0                 0       0
Northwest Territories 0                 0       0
Nova Scotia 13 13 5           8 0       0
Nunavut 0                 0       0
Ontario 5 5 2         1 2 2 4 7   1
Prince Edward Island 72 72 3   40 29       0       0
Quebec 4 4 2         2   0       0
Saskatchewan 26 26           26   0       0
Yukon Territory 0             0   0       0
TOTAL 133 133 13 0 40 29 0 41 10 2 4 33 0 1

Last Updated: December 14, 2015

2014 Summary by Province

Region November 1st, 2013 - September 15, 2014
Bat WNS Surveillance New Counties Environmental Sampling for Pd New Counties
Submitted Presumptive Tested Confirmed Suspect Negative Pending Present Absent Possible Pending
Alberta 0 0 0 0 0 0 0 0 0 0 0 0 0
British Columbia 20 0 20 0 0 20 0 0 0 95 0 0 0
Manitoba 0 0 0 0 0 0 0 0 0 0 0 100 0
New Brunswick 19 0 19 9 4 6 0 3 0 0 0 0 0
Newfoundland & Labrador 0 0 0 0 0 0 0 0 0 26 0 0 0
Northwest Territories 0 0 0 0 0 0 0 0 0 0 0 0 0
Nova Scotia 41 0 41 39 0 2 0 4 0 0 0 0 0
Nunavut 0 0 0 0 0 0 0 0 0 0 0 0 0
Ontario 33 2 28 5 0 23 0 1 0 0 0 0 0
Prince Edward Island 93 60 33 32 0 1 0 0 0 0 0 0 0
Quebec 18 0 16 1 3 12 0 1 0 0 0 17 0
Saskatchewan 8 0 8 0 0 8 0 0 0 1 0 0 0
Yukon Territory 0 0 0 0 0 0 0 0 0 0 0 0 0
TOTAL 232 62 165 86 7 72 0 9 0 140  0 142  0

Last Updated: September 15, 2014

2013 Summary by Province

Region November 1st, 2012 - May 31st, 2013
Submitted Presumptive Tested Confirmed Suspect Negative Pending
British Columbia 0 0 0 0 0 0 0
Alberta 0 0 0 0 0 0 0
Saskatchewan 0 0 0 0 0 0 0
Manitoba 0 0 0 0 0 0 0
Ontario 12 3 9 5 0 4 0
Quebec 11 2 9 4 1 2 2
New Brunswick 10 0 10 9 0 1 0
Nova Scotia 85 14 71 56 1 0 14
Prince Edward Island 60 0 60 60 0 0 0
Newfoundland and Labrador 0 0 0 0 0 0 0
Yukon Territory 0 0 0 0 0 0 0
Northwest Territories 0 0 0 0 0 0 0
Nunavut 0 0 0 0 0 0 0
TOTAL 178  19  159  134  2  7  16

Last Updated: January 2014

MAPS

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North America Ontario Québec Atlantic

Diagnostic Categories for Reporting cases of Bat WNS:

  1. Positive for WNS – Histologic lesions of bat WNS are present AND Pseudogymnoascus (formerly Geomyces) destructans (Pd) is detected (either by the Muller et al. PCR or by fungal culture).
  2. Suspect for WNS – one of the following criteria must be met:
    1. Histologic lesions of WNS are present but Pd is NOT detected (either by the Muller et al. PCR or by fungal culture).
    2. One or more clinical/field signs (see below) are observed AND Pd is detected (either by the Muller et al. PCR, fungal culture, or a tapelift performed directly on visible fungal growth on bat skin).
    3. MULTIPLE clinical/field signs (see below) are observed within the currently recognized range of WNS but no samples are collected for diagnostic workup.
    4. Individual bats that are part of a confirmed WNS morbidity/mortality event are submitted to, but not tested by, a laboratory. This criterion is for instances in which multiple samples from the same site are submitted, but only a subset of those samples is tested. The untested samples may be classified as suspect for WNS if the subset of tested samples is positive and consists of the same species as the untested samples. Representatives of all species involved in the disease event should be tested.
  1. Negative for WNS – Histologic lesions are not present AND Pd is not detected (either by the Muller et al. PCR or fungal culture).

Categories for Reporting Detection of Pd:

  1. Pd Present – Pd detected (either by Muller et al. PCR or fungal culture -**when screening for the presence of Pd, PCR is preferred over fungal culture due to the greater sensitivity of PCR) in an environmental sample or on an individual bat with no other clinical or field signs of WNS (see below) observed in the population at the hibernaculum. Bat carcasses submitted for diagnostic testing may be placed in this category if Pd is detected on the carcass but there were no clinical/field signs of WNS (see below) observed at the collection site and histopathology is negative.
  2. Pd not detected – Pd not detected (either by Muller et al. PCR or fungal culture – see ** in previous section) in an environmental sample or on an individual bat [NOTE: A negative PCR result indicates that the amount of Pd is below the level of detection for the test but cannot guarantee that the hibernaculum or bat population is free of Pd. A lack of observed field signs in the resident bat population is also not sufficient for assuming that a hibernaculum is Pd-free. All negative results from a statistically robust sample size can, however, increase confidence that Pd is absent from the sampled population or environment.] .

For management purposes, hibernacula should be considered contaminated with Pd if they contain at least one sample (bat or environmental) that tests positive for the fungus by the Muller et al. PCR or fungal culture regardless of whether field signs of the disease were observed within the hibernaculum. A contaminated hibernaculum retains this designation indefinitely. The ability of Pd to persist long-term outside of hibernacula is not currently well understood.

Clinical/field signs associated with WNS in bats:

  1. Winter/Spring – excessive or unexplained mortality at or near a hibernaculum; visible fungus on flight membranes, muzzle, or ears of live or fresh dead bats; yellow-orange fluorescent pattern of non-haired skin under UVA light; abnormal behaviors including daytime activity, premature egression from the hibernaculum or population shift to entrance of the hibernaculum; moderate to severe wing damage in nontorpid bats [Reichard et al.]; and thin body condition (NOTE: Moderate to severe wing damage in nontorpid bats or thin body condition are considered nonspecific field signs when they are observed alone).
  2. Summer/Fall – There are not consistent field signs associated with WNS during summer/fall.

Muller, L.K., J.M. Lorch, D.L. Lindner, M. O’Connor, A. Gargas, and D.S. Blehert. 2013. Bat white-nose syndrome: a real-time TaqMan polymerase chain reaction test targeting the intergenic spacer region of Geomyces destructans. Mycologia 105: 253-259.