agglutination

Sensitivity of local antigen: Serial tenfold dilutions (Undiluted, 10-1 to 10-6) of all the three antigens were prepared in Normal saline and each dilution was subjected to agglutination test with known positive and negative antisera to find out the minimum number of bacterial cells (best dilution) required to be used for visible agglutination.

The cell washing process can also help to remove protein agglutination and some aged RBC segments to avoid test interference, as well as eliminate lactic acid that accumulates on the RBCs for better preservation.

Latex agglutination test for early detection of causative organism in acute bacterial meningitis.

The Widal agglutination test has always been the preferred test for diagnosis of enteric fever in many developing countries, including India, where it is extensively practiced.

The DAT reagent is incubated with the patient's RBCs, followed by examination for agglutination. In general, warm RBC autoantibodies result in a positive test when monospecific anti-IgG reagent is used, whereas cold RBC autoantibodies result in a positive test when monospecific anticomplement reagent is used because IgM is able to fix complement.

Microscopic agglutination test (MAT) is the gold standard for detection of antibodies of leptospira organism in dogs (OIE, 2008).

hydrophila, a serum agglutination reaction was attempted.

Some antibodies cause universal agglutination when undiluted serum is used, but comparison of titration results may indicate specificity.

Agglutination was clearly observed in all antigens (Figure 2).

The different antibodies for Salmonella are available in the market and correct STGs should have a positive agglutination result upon their interaction with the antibodies.