Bordetella Pertussis Is Characterized by Rapid Peripheral Lymphocytosis and Decreased

question 7

Multiple Choice

Bordetella pertussis is characterized by rapid peripheral lymphocytosis and decreased cellularity of the lymph nodes. What can explain this phenomenon?

• A) Increased CD4:CD8 ratio
• 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

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