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.
A veterinary researcher studying Calgary's urban wildlife has uncovered a surprising health anomaly in the city's jackrabbits (Lepus townsendii).
Plants & Animals
Dec 2, 2025
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Raw cow and sheep milk is frequently contaminated with antibiotic-resistant bacteria that could pose a threat to human and animal health, reports a new study led by Tahir Usman of Abdul Wali Khan University Mardan, Pakistan, ...
Cell & Microbiology
Nov 12, 2025
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30
Leishmaniasis, a parasitic disease transmitted by sand flies, has long challenged veterinarians and public health experts alike. Found in humans and animals across Israel and many other parts of the world, the disease's intricate ...
Molecular & Computational biology
Nov 11, 2025
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A study published in Communications Biology sheds new light on the relationship between bats and dangerous viruses. Led by researchers at the University of Oklahoma, the study shows that, contrary to widespread assumptions, ...
Plants & Animals
Nov 4, 2025
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Evolutionary biologists have long believed that the human-biting mosquito, Culex pipiens form molestus, evolved from the bird-biting form, Culex pipiens form pipiens, in subways and cellars in northern Europe over the past ...
Evolution
Oct 23, 2025
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On 20 May, 2025, the Member States of the World Health Organization (WHO) formally adopted the first Pandemic Agreement.
Ecology
Oct 23, 2025
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New York City's mostly indoor cats easily caught SARS-CoV-2 during the first wave of the COVID-19 epidemic—and most were asymptomatic and were likely infected by their owners, according to a new study from a sample of cats ...
Veterinary medicine
Oct 22, 2025
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Mosquitoes aren't just a nuisance; they can carry diseases like West Nile virus, which can be transmitted to humans—and research shows their populations are on the rise in the U.S. despite city- and county-level efforts to ...
Plants & Animals
Oct 22, 2025
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19
Farmers handle a wide range of responsibilities to keep operations running—and a routine but often overlooked duty is safely disposing of dead livestock. Left unattended, carcasses can spread disease and jeopardize entire ...
Plants & Animals
Oct 21, 2025
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19
Let's face it—bats get a bad rap. Their links to disease outbreaks and their spooky association with vampires influence their notoriety. In reality, bats are truly remarkable. Bats support our agricultural industries as vital ...
Ecology
Oct 13, 2025
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