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First detection of bat white-nose syndrome in western North America

mSphere

By:
ORCID iD , , , ORCID iD , , , ORCID iD , , , , , , , and ORCID iD
https://doi.org/10.1128/mSphere.00148-16

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Abstract

White-nose syndrome (WNS) is an emerging fungal disease of bats caused byPseudogymnoascus destructans. Since it was first detected near Albany, NY, in 2006, the fungus has spread across eastern North America, killing unprecedented numbers of hibernating bats. The devastating impacts of WNS on Nearctic bat species are attributed to the likely introduction ofP. destructans from Eurasia to naive host populations in eastern North America. Since 2006, the disease has spread in a gradual wavelike pattern consistent with introduction of the pathogen at a single location. Here, we describe the first detection of P. destructans in western North America in a little brown bat (Myotis lucifugus) from near Seattle, WA, far from the previously recognized geographic distribution of the fungus. Whole-genome sequencing and phylogenetic analyses indicated that the isolate of P. destructans from Washington grouped with other isolates of a presumed clonal lineage from the eastern United States. Thus, the occurrence of P. destructans in Washington does not likely represent a novel introduction of the fungus from Eurasia, and the lack of intensive surveillance in the western United States makes it difficult to interpret whether the occurrence of P. destructans in the Pacific Northwest is disjunct from that in eastern North America. Although there is uncertainty surrounding the impacts of WNS in the Pacific Northwest, the presence of the pathogen in western North America could have major consequences for bat conservation.

IMPORTANCE White-nose syndrome (WNS) represents one of the most consequential wildlife diseases of modern times. Since it was first documented in New York in 2006, the disease has killed millions of bats and threatens several formerly abundant species with extirpation or extinction. The spread of WNS in eastern North America has been relatively gradual, inducing optimism that disease mitigation strategies could be established in time to conserve bats susceptible to WNS in western North America. The recent detection of the fungus that causes WNS in the Pacific Northwest, far from its previous known distribution, increases the urgency for understanding the long-term impacts of this disease and for developing strategies to conserve imperiled bat species.

Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
First detection of bat white-nose syndrome in western North America
Series title:
mSphere
DOI:
10.1128/mSphere.00148-16
Volume:
1
Issue:
4
Year Published:
2016
Language:
English
Publisher:
American Society for Microbiology
Contributing office(s):
National Wildlife Health Center
Description:
e00148-16; 5 p.
Online Only (Y/N):
N
Additional Online Files (Y/N):
N