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precipitin

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
precipitin [prə′sip·ə·tən]
(immunology)
An antibody that chemically interacts with an antigen to form a precipitate.


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5) Toxin testing: The WHO Streptococcus and Diphtheria Reference Unit (SDRU) modified the Elek Test, which employs antitoxin-impregnated disks that create precipitin lines (a positive reaction) when toxin-producing C diphtheriae is present on an agar plate after 24 hours of incubation.
Experimental Design Preinoculation serum was collected from each bird to confirm that they were serologically negative to influenza A type-specific antigens by the agar gel precipitin (AGP) test and the H5 hemagglutinin subtype by the hemagglutinin-inhibition (HI) test.
Serum precipitins to the offending antigen, a significant predictor of HP (Lacasse et al.
 
 
 
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