Zoonotic diseases are infectious diseases that are naturally transmitted between vertebrate animals and humans, encompassing a wide range of etiologic agents including viruses, bacteria, parasites, and fungi. They arise through direct contact, vectors, ingestion of contaminated food or water, or inhalation of infectious aerosols, and often involve complex reservoir and amplifier host dynamics. Zoonoses are central to One Health research, which integrates human, animal, and environmental health to study spillover mechanisms, host-pathogen interactions, ecological drivers, and evolutionary processes that enable cross-species transmission, adaptation, and, in some cases, sustained human-to-human spread.
Just 10 viral particles of the H5N1 bird flu that caused hundreds of influenza outbreaks in U.S. dairy cattle can cause infection in cows, a new study shows. The research also hints at why the outbreaks have confounded scientists, ...
Ecology
Jun 15, 2026
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Pets form an important part of many people's lives, providing meaningful companionship. However, our pets can sometimes also be a source of unwelcome pathogens and diseases, particularly if they frequently roam outdoors.
Plants & Animals
Jun 13, 2026
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The emerging infectious bacterium Escherichia albertii has caused outbreaks of severe food poisoning and hospitalized people through contaminated water and foods, such as salad ingredients. Now, a new study from Osaka Metropolitan ...
Ecology
Jun 12, 2026
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Chronic wasting disease (CWD) is generally associated with animals. But a new study by researchers from the University of Calgary and international collaborators explored the potential for CWD to spread from deer, elk and ...
Ecology
Jun 11, 2026
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26
The fungus that causes sporotrichosis is typically transmitted among cats and results in serious lesions. Recently, it was found in the internal organs of wild animals. The study was published in March in the journal Mycopathologia.
Ecology
Jun 10, 2026
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When a rare but deadly rodent-borne virus struck passengers on a cruise ship and seemed to be spreading, there were no treatments for those who fell ill and no vaccines to protect others.
Molecular & Computational biology
Jun 4, 2026
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A new predictive model developed at Washington State University could help scientists more efficiently identify the reservoirs of emerging zoonotic viruses and dangerous pathogens like Ebola that can spill over from animals ...
Veterinary medicine
Jun 3, 2026
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Millions of people in central Africa rely on wild meat for their nutrition, especially in rural areas around the Congo rainforest, the second largest tropical rainforest in the world. Here, meat from domestic animals is scarce ...
Ecology
May 31, 2026
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16
Every summer, millions of people spray themselves with DEET to keep mosquitoes away. But new research suggests mosquitoes may be able to learn to associate the repellent with food—and even become attracted to it.
Plants & Animals
May 28, 2026
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31
A 2021 outbreak of leptospirosis that sickened more than 200 dogs in Los Angeles County reveals critical gaps in vaccination practices and raises broader concerns about the spread of the disease between animals and people, ...
Cell & Microbiology
May 26, 2026
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