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March 22, 2023

MADISON, Wis. — The U.S. Geological Survey, together with the U.S. Fish and Wildlife Service and the University of Wisconsin–Madison, today announced that over $2.5 million has been received to develop an innovative treatment to prevent white-nose syndrome, a fungal disease decimating North American bat populations.

The project is one of six provided by the Partnership to Advance Conservation Science and Practice, an $8 million collaboration between the National Science Foundation and the Paul G. Allen Family Foundation to fund scientific research and conservation activities that protect diverse ecosystems and imperiled species across the country.

Image: Brown Bats with White Nose
Little brown bats in NY hibernation cave. Note that most of the bats exhibit fungal growth on their muzzles.

The project, led by Bruce Klein, Professor of Pediatrics, Internal Medicine and Medical Microbiology and Immunology at UW–Madison, will further investigate a white-nose syndrome vaccine and use of FDA-approved receptor inhibitors that could potentially protect North American bats against the disease.

The research will be carried out primarily by the UW–Madison in collaboration with the USGS, the USFWS and partnering state wildlife agencies. Building on previous research, the project includes completion of laboratory testing followed by two years of field research coordinated by the USGS and the USFWS in multiple states where imperiled bat populations are susceptible to the disease.

“We have high hopes that this research will prove to be a powerful tool for fighting white-nose syndrome in bat populations that are most affected,” said Jonathan Reichard, Assistant National White-nose Syndrome Coordinator for the USFWS. “This award will advance collaborations to address critical information gaps and develop effective management tools for this devastating wildlife disease."

White-nose syndrome affects hibernating bats and is caused by an invasive, cold-loving fungus. The fungus grows on and into bats’ skin, disturbing their hibernation and leading to dehydration, starvation and often death. First documented in New York in 2006, white-nose syndrome has since spread to 38 states and eight Canadian provinces and has been confirmed in 12 North American bat species.

“Bats are vital to our planet’s ecosystem and biodiversity, and we are excited that our research discoveries might drive development of a tool to advance the conservation of numerous bat species,” said Klein. “We’re also excited about the collaborative potential for this work to support the USGS, the USFWS and state agencies in their efforts to protect bats against the devastating impact of WNS.”

Gloved hands holding a bat white glove scientists administers vaccine orally.
A bat receiving the white-nose syndrome vaccine during an earlier field trial to study vaccine efficacy. 

The project seeks to develop an immune-based strategy to prevent disease by using a model system, developed by UW–Madison researchers, to investigate early interactions between bat skin and the fungus. Researchers will test how receptors in the skin may also influence susceptibility to WNS and how application of FDA-approved drugs alone or in combination with vaccination can protect bats against white-nose syndrome.

Tonie Rocke, Research Epidemiologist for the USGS, collaborated with Klein and others at UW–Madison to create the vaccine for use against white-nose syndrome, and initial field research has shown some promise in reducing fungal loads and curtailing the impact of the disease in hibernating bats.

“Using FDA-approved drugs alongside our white-nose vaccine could enhance the response we saw in our vaccine trials, providing an additional tool for managing the disease in threatened bat populations,” said Rocke.

Widespread throughout the U.S. and Canada, white-nose syndrome has led to declines of over 90% of northern long-eared, little brown and tri-colored bat populations in less than 10 years. Due to this high mortality rate, the northern long-eared bat was reclassified from threatened to endangered status under the Endangered Species Act in March, and the tricolored bat was proposed for endangered status in September 2022.

Today’s announcement comes as the ESA turns 50 years old in 2023. Throughout the year, the Department of the Interior will celebrate the ESA's importance in preventing imperiled species' extinction, promoting the recovery of wildlife and conserving the habitats upon which they depend.

Scientists worldwide are working together to study white-nose syndrome and determine how it can be controlled. Bats eat huge amounts of insects, including harmful agricultural and forest pests. In the U.S. alone, bats are estimated to save farmers at least $3.7 billion per year in pest control services. The loss of millions of bats to white-nose syndrome can have cascading effects on the environment, with potential to affect forest, agricultural and human health.

Additional information can be found here:

Northern long-eared bat with white-nose syndrome symptoms
Northern long-eared bat with white-nose syndrome symptoms.

National white-nose syndrome website:

Information about how the USGS is addressing WNS:

The NSF announcement can be found at

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The USGS provides science for a changing world. Learn more at or follow us on Facebook @USGeologicalSurvey, YouTube @USGS, Instagram @USGS, or Twitter @USGS.  


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