Airborne Pathogen Control
Airborne Pathogen Control - Related Videos
01:25
Transmission-based Precautions II: Airborne and Protective Environment
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2023
Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions. Airborne precautions: Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
11:18
Infection of Zebrafish Embryos with Intracellular Bacterial Pathogens
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Cited by 234 •
2012
Transparent zebrafish embryos have proved useful model hosts to visualize and functionally study interactions between innate immune cells and intracellular bacterial pathogens, such as Salmonella typhimurium and Mycobacterium marinum. Micro-injection of bacteria and multi-color fluorescence imaging are essential techniques involved in the application of zebrafish embryo infection models.
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.
08:56
Investigation of a Blue Light LED Device to Suppress Wound Pathogens Using a Collagen-Based Synthetic Skin Model
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2026
A 405 nm blue light LED device demonstrates antimicrobial efficacy against a broad range of wound pathogens when evaluated on a collagen-based synthetic skin model. This simplified in vitro approach offers a reproducible and ethically viable alternative for early-phase evaluation of light-based antimicrobial therapies.
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.
FAQs
Source control acts at the point where infectious particles are generated, limiting their release before they spread through shared air. In practice, it forms the first layer of control and works alongside ventilation, filtration, respiratory protection, isolation, and environmental disinfection. Reducing particle generation can lower the burden placed on downstream engineering and protective measures during patient care.
Ventilation helps remove or dilute contaminated air, while filtration captures airborne particles from the air stream. These engineering controls reduce persistence in the environment and can lower opportunities for exposure when infectious agents are transported through air. Their value is greatest when integrated with source control and other measures rather than treated as a standalone solution.
The three control categories interrupt transmission at different points. Engineering controls address the environment through ventilation and filtration; administrative practices organize care, isolation, and preparedness; personal protective equipment reduces individual exposure. Combining these layers is important because no single measure addresses particle generation, environmental persistence, and contact with susceptible people equally well.
Environmental disinfection is relevant when infectious material may persist on surrounding surfaces or in the care environment, although it is only one part of a broader control strategy. Its role should be considered alongside source control, air removal, respiratory protection, and isolation. Used in the appropriate circumstances, it helps address environmental pathways that airborne measures alone may not cover.
During an aerosol-generating procedure, facilities should coordinate measures that limit particle release, remove contaminated air, and reduce staff and patient exposure. This includes applying source control, using suitable ventilation and filtration, following isolation and administrative practices, and providing respiratory protection. The combined approach is intended to interrupt transmission during a period of increased airborne risk.
Teams can apply a layered plan that links patient-care practices with environmental and personal protections. Isolation helps separate potentially infectious patients, source control limits particle release, and ventilation or filtration supports removal from the air. Respiratory protection adds an individual barrier for healthcare workers. Together, these measures support safer care while addressing different stages of transmission.
During outbreaks involving pathogens such as influenza, tuberculosis, or COVID-19, coordinated controls help facilities reduce exposure while caring for patients and protecting healthcare workers. The same principles inform preparedness by highlighting the need for integrated engineering, administrative, and protective measures. They also guide safer facility design, helping organizations plan environments that can better manage airborne transmission risks.