True or False: Disinfection and Sterilization 1. The most commonly transmitted pathogen in the Or is HIV. 2. Bacterial meningitis may be caused by aerobic gram-negative cocci called N. meningitides. 3. The skin, hair, and nares of OR personnel are reservoirs of bacteria that may cause an SSI in the surgical patient. 4. Infection spread by contaminated instruments is an example of direct contact transmission, 5. Increased age and obesity play a vital role in the risk of the patient contracting an SSL 6. Semicritical items must be sterile and free from spores prior to use. 7. Contact time and the amount of bioburden on an item do not influence the efficiency of disinfectants. 8. Glutaraldehyde requires a minimum exposure time of 20 minutes to disinfect an item. 9. Instruments should always be soaked in saline to initiate the cleaning process prior to the end of the case, 10. The ultrasonic cleaner uses the process of cavitation for cleaning instruments