
Direct Fluorescent Antibody (DFA) test - Microbe Online
The direct fluorescent antibody (DFA) test is a rapid microscopic procedure for detecting the presence of a particular antigen (typically a specific protein on the surface of a virus, bacterium, or other microbes) using a fluorescently labeled monoclonal antibodies (mAb).
Direct fluorescent antibody - Wikipedia
Commercial DFA testing kits are available, which contain fluorescently labelled antibodies, designed to specifically target unique antigens present in the bacteria or virus, but not present in mammals . This technique can be used to quickly determine if a subject has a specific viral or bacterial infection.
Sputum direct fluorescent antibody (DFA) test - MedlinePlus
Sputum direct fluorescent antibody (DFA) is a lab test that looks for micro-organisms in lung secretions. You will produce a sputum sample from your lungs by coughing up mucus from deep inside your lungs. (This mucus is not the same as saliva or spit from the mouth.) The sample is sent to a lab. There, a fluorescent dye is added to the sample.
Direct Fluorescent Antibody - an overview | ScienceDirect Topics
The Direct Fluorescent Antibody (DFA) test is the gold standard for routine sensitive and specific lyssavirus post-mortem diagnosis. The test is based upon the microscopic detection of inclusions in the brain of rabid animals.
Application and Comparative Evaluation of Fluorescent Antibody ...
Accurate and early diagnosis of animal rabies is critical for undertaking public health measures. Whereas the direct fluorescent antibody (DFA) technique is the recommended test, the more convenient, direct rapid immunochemistry test (dRIT), as well ...
Immunofluorescence Assay: Principle, Steps, Types, and Uses
Direct Immunofluorescence or direct fluorescent antibody (DFA) test is a simple method requiring only primary antibody. The primary antibody conjugates to a fluorophore (fluorescent dye), which directly binds to the antigen of interest in the sample.
Direct Fluorescent Antibody Technique - ScienceDirect Topics
The direct fluorescent antibody (DFA) test is a rapid, cost-effective, sensitive, and highly specific 12 method for detecting and distinguishing cutaneous herpes simplex virus (HSV 1 and 2) and varicella zoster virus (VZV) infections.
Direct Fluorescent Antibody Test . for Rabies Diagnosis Preparation of DFA slides from brain sample DFA testing for Rabies virus antigen Observation and interpretation of results
Immunofluorescence assay (IFA) - Medical Notes
2023年9月1日 · Immunofluorescence assay (IFA) is a laboratory technique used for detecting and visualizing specific antigens or antibodies in biological samples. It combines the principles of both immunology and fluorescence microscopy to provide highly specific and sensitive results.
Sputum direct fluorescent antibody (DFA) - Mount Sinai Health System
Sputum direct fluorescent antibody (DFA) is a lab test that looks for micro-organisms in lung secretions. You will produce a sputum sample from your lungs by coughing up mucus from deep inside your lungs. (This mucus is not the same as saliva or spit from the mouth.) The sample is sent to a lab. There, a fluorescent dye is added to the sample.
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