Exam 18: Practical Applications of Immunology

In an immunodiffusion test to diagnose histoplasmosis, a patient's serum is placed in a well in an agar plate. In a positive test, a line forms as the serum diffuses from the well and meets material diffusing from a second well. What type of test is this?

Which of the following is NOT an advantage of live attenuated vaccine agents?

Purified protein from Bordetella pertussis is used in a(n)

A hybridoma results from the fusion of a(an)

All of the following are generally used in vaccines EXCEPT

A vaccine against HIV proteins made by vaccinia virus is a(n)

The home pregnancy test kit is an example of a direct ELISA.

Toxoid vaccines, such as the vaccines against diphtheria and tetanus, elicit a(n)

A DNA plasmid encoding a protein antigen from West Nile virus is injected into muscle cells of a horse. This is an example of a(n)

Table 18.1 -In Table 18.1, who probably has the disease?

In an agglutination test, eight serial dilutions to determine antibody titer were set up. Tube #1 contained a 1:2 dilution; tube #2, a 1:4, etc. If tube #6 is the last tube showing agglutination, what is the antibody titer?

A positive complement- fixation test in indicated by the lysis of the sheep red blood cells added in the indicator phase of the test.

A test used to identify Streptococcus pyogenes in a patient's throat swab is the

Haemophilus capsule polysaccharide plus diphtheria toxoid is a(n)

Inactivated tetanus toxin is a(n)

What type of vaccine involves host synthesis of viral antigens?

The following steps are used to produce monoclonal antibodies. What is the fourth step?

A test used to detect anti- Rickettsia antibodies in a patient's serum is the

An injection of "naked" DNA into muscle cells to induce an immune response against the proteins encoded by the DNA is an example of a subunit vaccine.

Western blotting uses antibodies to detect specific proteins in a mixture of proteins.