A person who has recovered from an attack of mumps is unlikely to catch the disease again.This is an example of
A) artificially acquired passive immunity.
B) naturally acquired active immunity.
C) artificially acquired active immunity.
D) naturally acquired passive immunity.
E) cell-mediated immunity.
Correct Answer:
Verified
Q20: An important innate defence mechanism in the
Q21: Tumour cells can evade the immune system
Q22: Which of the following is NOT an
Q23: An autoimmune disease represents a loss of
A)T
Q24: Which class of antibody is indicative of
Q26: Toxoids are
A)antibodies against toxins.
B)lipopolysaccharides of Gram-negative bacteria.
C)proteins
Q27: An attenuated vaccine consists of
A)killed microorganisms.
B)live microorganisms.
C)inactivated
Q28: Complement is activated by
A)an immune antibody.
B)phagocytes.
C)antigen-antibody complexes.
D)natural
Q29: The type of T cells that kill
Q30: A positive tuberculin skin test usually indicates
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