Zoonotic Diseases
Zoonotic Diseases - Related Videos
08:01
Glass Wool Filters for Concentrating Waterborne Viruses and Agricultural Zoonotic Pathogens
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Cited by 31 •
2012
Glass wool filters have been used to concentrate waterborne viruses by a number of research groups around the world. Here we show a simple approach for constructing glass wool filters and demonstrate the filters are also effective in concentrating waterborne viral, bacterial and protozoan pathogens.
10:17
Cities As Interfaces of Zoonotic Hazard Emergence: Development of the New York City Tick and Wildlife Urban Surveillance System
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2026
There is a critical need to monitor how ticks and their wildlife hosts respond to urbanization. This protocol outlines the steps for developing a standardized Tick and Wildlife Urban Surveillance System that will enable adaptive management in response to emerging tick-borne hazards in urban environments.
03:46
A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions
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Cited by 5 •
2023
This work describes the use of a flotation method to identify Toxocara canis and Ancylostoma spp. detected in fecal samples collected from dogs in Mexico from 2017 to 2021 under field conditions.
10:47
An Overview of Genetics and Disease
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2023
Many human diseases are associated with mutations or variations in genetic sequences. Some of these genetic variants are heritable, passed down from generation to generation, while others arise sporadically during an organism’s life and cause diseases such as cancer. Researchers are trying to identify and characterize these genetic alterations in the hopes of improving diagnosis and therapeutic options for patients.In this video, we will examine the history of genetic disease research, and...
01:30
Inflammatory Bowel Disease II: Crohn's Disease
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2025
Introduction Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment. Crohn's disease Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by transmural...
FAQs
A species barrier affects whether a pathogen can move between animal and human hosts, but it does not act alone. Successful transmission depends on the relationship among the pathogen, available hosts, and surrounding environment. Biology therefore examines zoonotic diseases as host-pathogen-environment systems, helping explain why changes in one part of that system can alter infection risk.
Route of exposure shapes how transmission occurs. Direct contact connects people and animals without an intermediate medium, whereas contaminated food or water provides an environmental route. Mosquitoes and ticks function as vectors, carrying pathogens between hosts. Comparing these routes helps investigators connect particular human-animal interactions or environmental conditions with the appearance and spread of infection.
Human activities can modify contact among people, animals, pathogens, and environments. Land-use change and animal production are specifically important because they can alter the interactions that support transmission across species. Examining these pressures gives biology and public health a way to identify conditions associated with emerging infection risks rather than viewing disease events in isolation.
Disease surveillance provides an organized way to follow zoonotic infection risks across the human, animal, and environmental settings in which they occur. In combination with biological knowledge of pathogens and hosts, surveillance can support recognition of changing risks and guide further investigation. This makes it an important foundation for public health responses and prevention planning.
Outbreak investigation examines a zoonotic disease event in relation to its possible hosts, transmission routes, and environmental conditions. Investigators can use this approach to connect infection patterns with direct contact, contaminated food or water, or vector exposure. The resulting understanding supports decisions about control measures, surveillance priorities, vaccination, and biosecurity.
Vaccination and biosecurity are complementary approaches for reducing zoonotic infection risks. Vaccination addresses prevention through immunization, while biosecurity focuses on practices that reduce opportunities for pathogens to move among animals, people, and environments. Their relevance extends beyond a single species because controlling transmission requires attention to linked human and animal health systems.