Waterborne Pathogens
Waterborne Pathogens - 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.
09:08
Developing a Salivary Antibody Multiplex Immunoassay to Measure Human Exposure to Environmental Pathogens
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Cited by 11 •
2016
In the current climate of scarce resources, new technologies are emerging that allow researchers to conduct studies cheaper, faster and with more precision. Here we describe the development of a bead-based salivary antibody multiplex immunoassay to measure human exposure to multiple environmental pathogens simultaneously.
10:39
Single Cell Measurements of Vacuolar Rupture Caused by Intracellular Pathogens
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Cited by 22 •
2013
We describe a method for tracking the endomembrane rupture elicited by the intracellular bacteria Shigella flexneri and Mycobacterium tuberculosis upon host cell invasion. Our assay makes use of CCF4, a host cytoplasmic FRET probe in live or fixed cells. This reporter is degraded by an enzyme activity present on the bacterial surface.
01:25
Colonisation of Pathogens
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2026
Pathogen colonization of host tissues is a critical step in the development of infectious diseases. Various pathogenic microorganisms, including bacteria, fungi, viruses, and protozoa, have evolved complex strategies to attach to, invade, and persist within host environments. These mechanisms enable pathogens to establish infections, evade immune responses, and resist antimicrobial treatments.Attachment to Host CellsIn bacteria, colonization typically begins with adherence to host epithelial...
01:30
Immunohistological Detection of Pathogens in Brain Tissue
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2025
Wash to remove the paraffin, then rehydrate the tissue using decreasing alcohol concentrations.
FAQs
Transmission depends partly on whether contaminated water provides suitable conditions for microorganisms to survive. Human or animal waste can introduce pathogens into water, while persistence in that environment creates opportunities for exposure. Infection may follow when a person swallows the water or when it contacts vulnerable tissues, linking environmental survival directly to host entry and disease risk.
Exposure first engages innate immune responses, which provide an early defense against invading microorganisms. Adaptive immune responses then contribute more targeted activity as the infection develops. The resulting interaction between pathogen and host defenses can produce symptoms ranging from gastrointestinal illness to systemic disease, depending on the microorganism involved and the effectiveness of the host response.
Bacteria, viruses, protozoa, and other parasites differ as infectious agents, so their effects are not uniform. Disease outcomes also depend on the route of contact, the tissues exposed, and the host's defenses. Consequently, contaminated water may be associated with localized gastrointestinal illness in some situations, while other infections can progress to broader systemic disease.
Host defenses help determine how an infection develops after exposure. Innate responses act early, while adaptive responses provide additional immune activity, and the combined response influences symptoms and disease extent. Contact with vulnerable tissues can increase concern because it provides another route for infection. These relationships make waterborne disease an important subject in immunology and infection research.
Investigation combines water-quality monitoring, outbreak investigation, and diagnostic testing. Monitoring examines water conditions, while outbreak investigations help connect illnesses with possible contamination events. Diagnostic testing supports identification of infection in affected individuals. Together, these approaches provide evidence for understanding transmission and guide sanitation or other prevention strategies intended to reduce further exposure.
Sanitation and prevention are used when communities need to reduce contamination and interrupt transmission. They are especially relevant to drinking-water and recreational-water protection, where contaminated water can reach people through swallowing or contact with vulnerable tissues. Findings from monitoring, diagnostic testing, and outbreak investigations can help direct these measures and protect communities from continuing exposure.