Wildfires represent a significant but underappreciated threat to animal health systems and disease surveillance networks globally, according to the World Organisation for Animal Health (WOAH). The disruption of veterinary services, livestock displacement, and compromised disease monitoring during fire events create cascading risks for both animal welfare and zoonotic disease control—gaps that remain largely invisible in international disaster response frameworks.
Key takeaways
- Wildfires disrupt veterinary services and animal disease surveillance systems, yet are rarely classified as public health emergencies
- Livestock displacement and overcrowding in temporary shelters increase disease transmission and complicate outbreak response
- WOAH identifies wildfire preparedness as a critical gap in One Health emergency planning across most countries
Invisible infrastructure breakdown during fire events
When wildfires sweep through regions, they disable the veterinary infrastructure essential for disease monitoring and control. According to WOAH’s analysis of wildfire impacts on animal health systems, clinics, diagnostic laboratories, and vaccine cold chains are frequently destroyed or rendered inaccessible. This collapse occurs precisely when disease risks are highest—animal populations are stressed, displaced, and concentrated in emergency shelters where transmission accelerates.
The problem extends beyond immediate livestock losses. WOAH emphasizes that prolonged service disruption undermines years of progress in disease eradication campaigns and surveillance networks. Countries investing in brucellosis control, foot-and-mouth disease monitoring, or avian influenza early warning systems face complete loss of laboratory capacity and animal movement records during major fire events.
Disease surveillance gaps create downstream human health risks
The breakdown in animal disease monitoring during wildfires has direct implications for human health. According to WOAH communications on zoonotic disease risks, 75% of emerging infectious diseases are zoonotic—meaning they originate in animals. When wildfire-displaced livestock are herded into crowded temporary facilities without veterinary oversight, conditions favour rapid pathogen amplification and spillover to human handlers and communities. Diseases like brucellosis, Q fever, and leptospirosis spread unchecked when quarantine protocols and diagnostic capacity vanish.
Wildlife disease ecology is similarly disrupted. Burned habitats fragment animal populations, force unusual mixing of species, and create ecological stress that enhances pathogen transmission. WOAH notes that the monitoring of zoonotic diseases in wildlife populations often ceases entirely during fire seasons, leaving public health authorities blind to emerging threats.
Wildfires disable the veterinary infrastructure that underpins global disease surveillance, yet emergency response protocols rarely account for animal health system recovery as a public health priority
— World Organisation for Animal Health (WOAH)
One Health planning must integrate wildfire preparedness
WOAH calls for urgent integration of animal health resilience into wildfire preparedness frameworks. This includes pre-positioning mobile diagnostic equipment, establishing redundant vaccine storage protocols, and maintaining emergency contact networks for rapid laboratory restoration. Countries like Australia and parts of the United States have begun implementing such measures following devastating fire seasons, but the practice remains uncommon globally.
The organisation stresses that One Health emergency response—which coordinates human, animal, and environmental health systems—cannot function when veterinary services are not explicitly included in disaster management planning. National fire response protocols should identify critical animal health infrastructure as essential infrastructure requiring protection and rapid recovery, similar to water systems or power grids.
What this means
Frequently asked questions
How do wildfires increase human disease risk through animals?
Wildfires destroy veterinary clinics and laboratories, disabling disease surveillance. Displaced livestock are crowded into temporary shelters without oversight, accelerating transmission of zoonotic pathogens like brucellosis and leptospirosis. When monitoring systems collapse, outbreaks spread unchecked into human populations.
Why isn’t wildfire preparedness standard in animal health systems?
Most national disaster response frameworks focus on human safety and property protection, leaving animal health infrastructure unprotected. WOAH notes that few countries classify animal health system collapse as a public health emergency, despite 75% of emerging infectious diseases originating in animals.
What specific measures can countries take to protect veterinary services during wildfires?
According to WOAH, priorities include pre-positioned mobile diagnostic units, redundant vaccine storage protocols away from fire zones, emergency communication networks for rapid lab restoration, and training for rapid disease surveillance restart. Countries should treat veterinary infrastructure with the same protection level as water and power systems.
Integrating animal health resilience into wildfire preparedness represents a critical gap in global One Health architecture. As climate change intensifies fire seasonality in multiple regions, veterinary system preparedness—currently overlooked in most disaster frameworks—will increasingly determine whether countries can detect and contain zoonotic disease outbreaks before they escalate to pandemic scale. WOAH’s call for explicit inclusion of animal health in fire response planning offers a concrete pathway to strengthen disease surveillance at the human-animal interface.
Source: World Organisation for Animal Health: Wildfires are also an animal health emergency
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