Perianal Swabbing
Perianal Swabbing - Related Videos
10:03
Swab Sampling Method for the Detection of Human Norovirus on Surfaces
0 Views •
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
0 Views •
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.
04:45
Swab-based Conjunctival Commensal Bacteria Isolation: A Technique to Isolate Commensal Bacteria from Conjunctiva of Murine Model
0 Views •
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.
07:13
Swabbing the Urban Environment - A Pipeline for Sampling and Detection of SARS-CoV-2 From Environmental Reservoirs
0 Views •
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
0 Views •
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
The analytical method should match the material sought in the specimen. Culture can be used to identify microorganisms, microscopy can support detection of parasitic eggs, and molecular testing can detect genetic material. This distinction allows investigators to align specimen processing with questions about colonization, infection, or the presence of a specific parasitic stage.
A perianal specimen can provide evidence of microorganisms present around the anal region after intestinal contents have reached that site. In infection studies, the finding may support assessment of intestinal colonization or carriage, including carriage of antimicrobial-resistant organisms. Interpretation therefore depends on the laboratory method and the biological question guiding collection.
Repeated sampling enables researchers to compare carriage over time rather than relying on a single observation. Changes in detected microorganisms, genetic material, or parasitic eggs may help track infection-related patterns or shifts during treatment. In immunology and infection research, this longitudinal approach can also contribute to studies of changing host–microbe interactions.
Collection uses a sterile swab, which may be moistened with transport medium when appropriate. The swab is rotated across the perianal folds to obtain the specimen and is then placed in a suitable container for laboratory analysis. Consistent handling of these steps helps preserve the collected material for culture, microscopy, or molecular testing.
A swab may be moistened with transport medium before sampling, depending on the collection and testing requirements. The specimen is then transferred into a suitable container so the material can proceed to laboratory analysis. Because the intended test may involve culture, microscopy, or molecular detection, collection conditions should be matched to the target and analytical workflow.
This minimally invasive approach supports surveillance for enteric infections and antimicrobial-resistant organisms, while also allowing investigators to examine intestinal colonization. Its suitability for repeated collection makes it useful for monitoring carriage during treatment and for evaluating host–microbe interactions. The resulting laboratory findings can connect local specimen data with broader infection and immune-response research questions.