What is the normal count of Helper T-cells in human beings?
A. 1200/mm3
B. 800/mm3
C. 200/mm3
D. 2000/mm3
Answer:A
What is the normal count of Helper T-cells in human beings?
A. 1200/mm3 B. 800/mm3 C. 200/mm3 D. 2000/mm3