Since we are talking about microorganisms, please make it a habit to wash your hands at least two or three times a day to prevent bacteria from building up on your skin which could make you sick or allow you to be a carrier, especially when you go out in public. When you visit a family member or friend in the hospital, follow infection control guidelines on the patient's door. There are a number of infectious microorganisms which are resistant to antibiotics that we need to be aware one being the Vancomycin-resistant enterococcus (VRE), and Methicillin resistant staphylococcus aureus (MRSA), which is a gram + bacteria resistant to oxacilin/methicillin. Both of these bacteria are spread by skin to skin contact. You can do a lot to prevent the spread of microorganisms by just washing your hands frequently with soap and water.