A blood test used to detect bacteria that can cause ulcers known as Helicobacter pylori (or H. pylori).
An immunoassay is a test in which a substance is identified by its ability to produce an immune response (by binding to specific antibodies). In an enzyme immunoassay, an enzyme is used to highlight or label either the substance in question or the antibody that is produced in response to it.
Enzyme Linked Immunosorbent Assay (ELISA) is used for diagnosis of specific infectious diseases. An enzyme is used as the indicator system; when the enzyme and the antigen-antibody complex bind, a color indicator or other easily recognizable sign occurs.
"A method used in microbiology to detect microoganisms such as bacteria or viruses. It works by chemically linking an enzyme to an antibody that recognizes and adheres to the desired microorganism. Any unbound antibody-enzyme complex is removed and chemical which is converted by the enzyme into a fluorescent compound is applied and allowed to react. The fluorescence is then detected to reveal the presence or absence of the microorganism." [USAMRIID, p. A-6
A blood test used to detect bacteria (Helicobacter pylori; also called H. pylori) that can cause ulcers.