I believe you are referring to a titer. This test can detect a particular amount of antibody in the bloodstream, signalling either the presence of an infection or a built up immunity.
The measure of how often you perform an activity is the frequency.
Immunoassays measure the formation of antibody-antigen complexes and detect them via an indicator reaction.
In an indirect ELISA, the enzyme-linked antibody attaches to the target antigen that has been immobilized on the microplate. This allows for the detection of the antigen through the enzyme's activity, which produces a signal that indicates the presence of the target antigen in the sample.
Frequency is a measure of how often an activity is performed. It can be daily, weekly, monthly, etc. and helps determine the regularity of the activity.
Antibody
A seismometer would measure earthquakes, but there is no such activity on the moon to measure.
The primary measure it looks at is the real GDP, which it considers to be the single best measure of aggregate economic activity.
the antibody can be uncontrollable
Antibody is a noun.
Nontreponemal antigen tests are used as screeners. They measure the presence of reagin, which is an antibody formed in reaction to syphilis.
An immunoassay measures the presence or concentration of macromolecules found in a solution. To determine this measurement it uses an antibody or immunoglobulin.
Antigen is the opposite of antibody.