This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
EBV enters B-cells through? 
Select and explain. 
A. CD-1, B. CD-2, C. CD-21, D. CD-19
C: CD-21
Answer: C: CD-21 
Explanation: Ans. is 'c' i.e., CD-21 The virus enter the pharyngeal epithelial cells and B cells through (CR 2 / or CD21) receptors.