Bordetella pertussis is characterized by rapid peripheral lymphocytosis and decreased cellularity of the lymph nodes. What can explain this phenomenon?
a. Loss of homing of B cells to lymphoid tissues
b. Loss of homing of T cells to lymphoid tissue
c. Abnormal homing of lymphocytes to the bone marrow
d. Increase of L-selectin expression by T cells
Correct Answer: B
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In business fires, typically, the first-in engine will go to ____.
A. the loading dock B. the nearest intersection C. the back of the building D. the front of the building
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