Answer:
this is the solution I think
 
        
                    
             
        
        
        
You may miss the symptoms but there are symptoms and they can be detected and life threatening.  Especially if we consider AIDS as an STD.
I believe the answer to be B. False
        
                    
             
        
        
        
Mind answering my question about the moon is the same as I did with you and your friend that I did you put in your mouth