Swabbing Technique
Swabbing Technique - Related Videos
04:45
Swab-based Conjunctival Commensal Bacteria Isolation: A Technique to Isolate Commensal Bacteria from Conjunctiva of Murine Model
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2025
This video describes a swab-based technique to isolate viable commensal bacteria from the ocular conjunctiva. The technique can be used to profile the commensal bacterial microbiome of the conjunctiva, which plays a defensive role against pathogens.
10:03
Swab Sampling Method for the Detection of Human Norovirus on Surfaces
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Cited by 40 •
2017
A macrofoam based sampling methodology was developed and evaluated for the detection and quantification of norovirus on environmental hard surfaces.
02:34
Quantification of Group B Streptococcus Load in the Mouse Vaginal Lumen via Swabbing and Chromogenic Culture
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2026
Source: Patras, K. A. & Doran, K. S. A Murine Model of Group B Streptococcus Vaginal Colonization. J. Vis. Exp. (2016)This video demonstrates the quantification of vaginal Group B Streptococcus (GBS) load in a mouse model using swabbing and chromogenic culture. It outlines the steps involved in sample collection, plating, and colony counting to quantify GBS load in the mouse vaginal lumen.
07:13
Swabbing the Urban Environment - A Pipeline for Sampling and Detection of SARS-CoV-2 From Environmental Reservoirs
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Cited by 5 •
2021
A citizen science project was designed to recruit San Diego residents to collect environmental samples for SARS-CoV-2. A multilingual web-based platform was created for data submission using a user-friendly mobile device interface. A laboratory information management system facilitated the collection of thousands of geographically diverse samples with real-time outcome tracking.
01:55
COVID-19 / Coronavirus Outbreak: Performing a Nasal Swab Test on Patients inside a Rapidly Deployable Facility Optimized for Epidemics
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2020
While different types of diagnostic tests may be used to detect coronavirus disease, a nasopharyngeal swab test is the most common. The test must be performed by a trained healthcare provider. If cell culture is collected in a wrong manner, the diagnosis obtained may be incorrect. The World Health Organization (WHO) recommends that providers use a sterile dacron or rayon swab with a flexible, plastic shaft for deep nasal sampling. Cotton, calcium alginate swabs, or swabs with wooden sticks may...
FAQs
Swabbing technique depends on contact between sterile swab fibers and a defined surface area. As the swab passes over that area, cells, microorganisms, or other biological material adhere to the fibers. The collected material can then be transferred into transport medium or processed directly, linking the sampling step to culture, microscopy, or molecular testing.
Sterile equipment helps prevent biological material from outside the target area from entering the sample. Contamination control is especially important when laboratories analyze microorganisms or other low-abundance material, because unwanted material can complicate interpretation. Careful handling, accurate labeling, and appropriate storage help maintain sample integrity and improve the reliability of downstream results.
A defined sampling area makes collection more consistent and gives the resulting analysis a clear spatial context. Without a specified area, samples may differ because of variation in surface coverage rather than biological differences. Standardizing the target area therefore supports comparisons among samples and helps relate culture, microscopy, or molecular findings to the surface examined.
A typical workflow begins by selecting and labeling the sampling target, then applying a sterile swab to the defined surface area. After collection, the swab is transferred to transport medium or processed directly. Storage and handling follow the planned laboratory analysis, while contamination control is maintained throughout to protect sample integrity.
Material collected by swabbing can support several downstream approaches. Culture may be used in investigations involving microorganisms, microscopy can examine collected biological material, and molecular testing can provide another route for analysis. The selected approach depends on the research or investigation, while accurate labeling and storage help connect each result to its original sample.
Biologists use this approach when they need to examine material associated with a surface. Supported applications include environmental monitoring, microbial identification, clinical investigation, and research on surface-associated communities. Because the method samples a defined location, it can connect laboratory findings with particular environments or surfaces while providing material for culture, microscopy, or molecular testing.