MeSH definition : Serologic tests in which a known quantity of antigen is added to the serum prior to
the addition of a red cell suspension. Reaction result is expressed as the smallest
amount of antigen which causes complete inhibition of hemagglutination.;
Serologic tests in which a known quantity of antigen is added to the serum prior to
the addition of a red cell suspension. Reaction result is expressed as the smallest
amount of antigen which causes complete inhibition of hemagglutination.