direct agglutination


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to direct agglutination: indirect agglutination

direct agglutination

The formation of an insoluble network of antigens and their antibodies, when the antigen is mixed with specific antiserum. Direct agglutination reactions are used, for example, in typing blood or in assessing the presence of antibodies against microorganisms.
See also: agglutination
References in periodicals archive ?
Leish-KIT, a stable direct agglutination test based on freeze-dried antigen for serodiagnosis of visceral leishmaniasis.
u]) is routinely performed in patients who test negative with anti-D reagents on direct agglutination (ie, without anti-human globulin), 58.
From January 2000 to February 2006, a total of 3,645 patients suspected of having kala-azar were screened at Amudat Health Centre by using the direct agglutination test or rK39 antigen-based dipsticks (6); 2,088 patients with confirmed disease were treated with daily intramuscular injections of sodium stibogluconate or meglumine antimonite, 20 mg/kg bodyweight, for 30 days.
For another patient, serologic results by direct agglutination were negative when performed early in the course of disease but positive when repeated.
tularensis was detected 4 weeks after onset (titer 1:40, direct agglutination method); however, it disappeared at 3 months after chemotherapy-associated lymphopenia (Figure).

Full browser ?