Infection Control Measures
Infection Control Measures - Related Videos
13:22
Measurement of γHV68 Infection in Mice
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Cited by 1 •
2011
γ-Herpesviruses (γ-HVs) establish life-long persistency in their host. Infection of mice with γ-HV68 provides a genetically tractable in vivo model for the characterization of the lifecycle/pathogenesis of γHVs. This protocol describes the detection and quantitation of γHV68 infection at acute and latent stages following infection by plaque-forming, infectious center, and qPCR assays.
03:04
An Intragastric Gavage Technique for Controlled Helicobacter Infection in Mice
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2025
This video demonstrates the establishment of Helicobacter pylori infection through the intragastric gavage technique in a mouse model. The bacterial suspension is administered via a catheter inserted through the mouth into the stomach. Inoculated bacteria colonize and establish an infection in the stomach, which can be used to study the host-pathogen interaction.
08:36
Measuring Dengue Virus RNA in the Culture Supernatant of Infected Cells by Real-time Quantitative Polymerase Chain Reaction
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Cited by 7 •
2018
Real-time quantitative polymerase chain reaction analysis combined with reverse transcription (RT-qPCR) has been widely used to measure the level of RNA virus infections. Here we present a direct RT-qPCR assay, which does not require an RNA purification step, developed for the quantification of several RNA viruses, including dengue virus.
09:35
Using Click Chemistry to Measure the Effect of Viral Infection on Host-Cell RNA Synthesis
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Cited by 15 •
2013
This method describes the use of click chemistry to measure changes in host cell transcription after infection with the Rift Valley fever virus (RVFV) strain MP-12. Results can be visualized qualitatively via fluorescence microscopy or obtained quantitatively through flow cytometry. This method is adaptable for use with other viruses.
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.
FAQs
Transmission is interrupted by targeting different links in the chain of infection rather than relying on one precaution. Hand hygiene reduces transfer through contact, protective equipment limits exposure, respiratory precautions address spread from respiratory sources, and environmental measures reduce contamination of surroundings or equipment. Matching the intervention to the likely route makes prevention more effective in clinical care.
Hand hygiene, personal protective equipment, and respiratory precautions serve different protective purposes. Hand hygiene addresses transfer by hands, while gloves, gowns, masks, or other protective equipment create barriers selected for the anticipated exposure. Respiratory precautions focus on infectious material from the respiratory tract. Combining or prioritizing them depends on the transmission risk identified in a clinical situation.
Cleaning, disinfection, and sterilization are distinct environmental controls, not interchangeable steps. Each addresses contamination differently, so the selected approach should match the clinical task and the item or surroundings involved. Applying the appropriate control supports safe procedures and limits opportunities for pathogens to persist or spread.
Risk assessment, staff training, and surveillance make infection control a continuing clinical process rather than a one-time intervention. Risk assessment identifies the precautions needed for a situation, training promotes consistent implementation, and surveillance helps evaluate infection patterns and recognize emerging threats. Together, these activities support timely adjustment of practices when risks or transmission conditions change.
A practical workflow starts by assessing the patient, procedure, and likely transmission risk, then selecting the relevant precautions. Staff apply hand hygiene, use appropriate personal protective equipment, implement respiratory precautions when indicated, and maintain environmental cleaning, disinfection, or sterilization as required. Isolation of infectious patients adds source separation. Consistency across these steps is central to safe clinical care.
Isolation and respiratory precautions address different but related clinical needs. Isolation separates infectious patients to reduce opportunities for transmission, while respiratory precautions target spread associated with respiratory sources. Their use is especially relevant when caring for infectious patients. Applying these measures alongside hand hygiene and environmental controls helps avoid relying on a single barrier.
Infection control measures have value beyond individual bedside encounters. Consistent implementation can reduce healthcare-associated infections, support safe procedures, and limit antimicrobial-resistant organisms. These outcomes connect routine practices, such as hygiene, protective equipment, environmental control, and isolation, with broader clinical and public-health goals. They also explain why adherence matters across staff, patients, and healthcare environments.