direct fluorescent antibody


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Related to direct fluorescent antibody: FA test

direct fluorescent antibody

Abbreviation: DFA
A fluorescent antibody test performed on sputum to detect microorganisms that invade the respiratory tract, e.g., Legionella, Mycoplasma, or Bacillus anthracis.
Synonym: direct fluorescein-conjugated antibody; direct immunofluorescence test
See also: antibody
Medical Dictionary, © 2009 Farlex and Partners
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References in periodicals archive ?
The next day, October 29, CDC detected rabies virus antigen in the skin biopsy by direct fluorescent antibody testing.
Human rabies - Virginia, 2009
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87267: Infectious agent antigen detection by immunofluorescent technique; enterovirus, direct fluorescent antibody (DFA)
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All cases were confirmed by culture and direct fluorescent antibody staining or indirect immunofluorescent antibody tests.
Legionellosis from Legionella pneumophila serogroup 13
Influenza can be confirmed by various methods, including commercially available rapid tests, viral culture, direct fluorescent antibody, reverse transcriptase polymerase chain reaction, IHC of tissues collected during autopsy (3), and paired serology.
Update: influenza-associated deaths reported among children aged <18 years--United States, 2003-04 influenza season
* 871XX=Cytomegalovirus direct fluorescent antibody (DFA)
New legislation gives hope for an improved Medicare payment system for clinical laboratory services
Identification was confirmed by phage lysis and direct fluorescent antibody staining.
Plague from eating raw camel liver
The nuchal skin biopsy was negative for rabies virus antigen by the direct fluorescent antibody test.
Human rabies
Direct Fluorescent Antibody (DFA) and Mouse Inoculation (MI) Testing of Brains
Survey for bat lyssaviruses, Thailand
LD also can be diagnosed by a four-fold rise in anti-legionella antibody titer or by direct fluorescent antibody on sputum samples, although the latter method lacks specificity and sensitivity.
Outbreak of Legionnaires' Disease Among Automotive Plant Workers -- Ohio, 2001
Brains of animals that died during MIT were subjected to the direct fluorescent antibody test (DFAT) with polyclonal antirabies fluorescein (FITC)-labeled immune globulins (Scientific-Research Veterinary Institute, Kazan, Russia) or FITC-labeled antirabies diagnostic conjugate (Centocor Inc., Malvern, PA).
Novel lyssaviruses isolated from bats in Russia
A nuchal skin biopsy tested positive by direct fluorescent antibody test.
Human Rabies -- Quebec, Canada, 2000

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