This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
AIDS involves - 
Select and explain. 
A. T-helper cells, B. T-suppressor cells, C. T-cytotoxic, D. B. Cells
A: T-helper cells
Answer: A: T-helper cells 
Explanation: The receptor for tge virus is the CD4 antigen and therefore the virus may infect any cell bearing the CD4 antigen on the surface.This is primarily the CD4 T lymphocytes. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO-574