antigen unit

an·ti·gen u·nit

the smallest amount of antigen that, in the presence of specific antiserum, will fix 1 complement unit.
Farlex Partner Medical Dictionary © Farlex 2012

an·ti·gen u·nit

(an'ti-jen yū'nit)
The smallest amount of antigen that, in the presence of specific antiserum, will fix one complement unit.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

antigen unit

The smallest quantity of antigen required to fix one unit of complement.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
The antigen unit 100 was used as a cut-off value for identification of antigenemia as per the manufacturer's instruction.
Serum samples with an antigen unit of 128 (>titre of standard No.
Interpretation of results were as if NS1 antigen units is <9 negative, if 911 equivocal and >11 positive.