Which of the following is NOT true of a category A stage of an HIV infection?
A) Helper T count is 500 per mm3 or greater.
B) An infected person is very contagious.
C) Most infected people have no symptoms.
D) HIV blood test is positive.
Correct Answer:
Verified
Q70: During clonal selection,most B cells become plasma
Q71: Which of the following is NOT an
Q72: HIV-1 is transmitted by
A)sexual contact.
B)sharing needles.
C)blood.
D)All apply.
Q73: Antibodies bind to
A)foreign substances.
B)antigens.
C)bacteria.
D)All apply.
Q74: Which type of antibody is found in
Q76: An antigen-presenting cell (APC)is a
A)red blood cell.
B)macrophage.
C)helper
Q77: Which of the following is NOT true
Q78: Which of the following is NOT true
Q79: T cells
A)are activated by an antigen-presenting cell.
B)may
Q80: Which of the following is NOT true
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