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
HIV is transmitted by all of the following routes
except 
Select and explain. 
A. Saliva, B. Needle prick injury, C. Blood transmission, D. Sexual intercourse
A: Saliva
Answer: A: Saliva 
Explanation: None