Which lineage of immune cells constitutes the first line of defense against an infection?
A. Lymphoid
B. Erythroid
C. Myeloid
D. All of the above
E. None of the above
Answer: C
Which lineage of immune cells constitutes the first line of defense against an infection?
A. Lymphoid
B. Erythroid
C. Myeloid
D. All of the above
E. None of the above
Answer: C