Several research groups are working on vaccines that will be effective against the AIDS virus. When a successful vaccine is produced, it is likely to be injected to produce
A. active natural immunity.
B. active artificial immunity.
C. passive natural immunity.
D. passive artificial immunity.
E. active passive immunity.
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Question 2) A traditional method of providing temporary immunity for a person who is suspected of being infected (usually be an animal bite) with rabies is classified as
A. active natural immunity.
B. active artificial immunity.
C. passive natural immunity.
D. passive artificial immunity.
E. passive active immunity.
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Question 3) Transfusing a person with plasma proteins from a person or an animal that has been actively immunized against a specific antigen provides
A. active immunity.
B. passive immunity.
C. no immunity.
D. autoimmunity.
E. natural immunity.
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Question 4) Active natural immunity occurs when
A. antibodies pass from a pregnant mother to her fetus.
B. antibodies are injected into a host.
C. an individual develops a disease.
D. a person is vaccinated.
E. antibodies are passed in breast milk.
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Question 5) Stimulating the proliferation of cytotoxic T cells to destroy cancer cells is an example of
A. immunotherapy.
B. immunocompetence.
C. tolerance.
D. passive artificial acquired immunity.
E. passive natural acquired immunity.
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Question 6) Which of the following will increase your risk of contracting the HIV virus?
A. use of a condom during intercourse
B. heat treatment of clotting factors prior to transfusion
C. use of contaminated needles
D. reduction in the number of sexual partners
E. abstinence
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Question 7) The most rapidly increasing group of AIDS patients is ____ who have had sexual contact with an infected person.
A. homosexual males
B. hemophiliacs
C. heterosexual males and females
D. homosexual females
E. bisexual males
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Question 8) The HIV virus can be transmitted
A. only from males to other males.
B. during unprotected sexual intercourse.
C. by coughing or sneezing.
D. by contact with people at work.
E. by hugging an infected child.
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Question 9) The HIV virus infects
A. B cells.
B. cytotoxic T cells.
C. suppressor T cells.
D. helper T cells.
E. monocytes.
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Question 10) In the cell-mediated immune response, T cells secrete ____, which activate additional components of the immune system.
A. antibodies
B. complement
C. collagen
D. cytokines
E. histamine
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