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
Full blown Immunodeficiency syndrome is - 
Select and explain. 
A. High viral titres with low CD 4 count, B. Low viral titres with low CD 4 count, C. Low viral titres with high CD 4 count, D. High viral titres with high CD 4 count
A: High viral titres with low CD 4 count
Answer: A: High viral titres with low CD 4 count 
Explanation: HIV infects CD4 T cells. Thus in full blown infection, there will be high viral titres with low CD4 count.Textbook of microbiology REF:Ananthanarayan and Paniker. Page no.:574