This document contains questions from a student regarding infection control for Dr. Hatem el Bitar to answer. The questions cover topics such as the differences between hand hygiene and hand washing, cleaning and disinfection, preferred hand hygiene methods in different settings, what qualifies as a hospital-acquired infection, why hospital-acquired pneumonia requires more time than other infections, use of prophylactic antibiotics and isolation protocols. The student is seeking clarification on these infection control procedures and standards.