An antibody that produces a visible precipitate when it reacts with its antigen.
- Serum agglutinins, precipitins, and complement-fixing antibodies can also be used to establish a diagnosis.
- His laboratory was the first to emphasize the importance of precipitins to various peptide and polysaccharide antigens of Aspergillus fimigatus.
- A negative serologic assay for precipitins does not rule out disease, as many factors can decrease the sensitivity of the test.
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