Ah yes, but she could have developed a pulmonary embolus form the clot in her leg. ALso, you often find that most HAIs start from people bringing them in from the community! I work as a doctor in a busy Yorkshire hospital, and we have all been given a little pump full of alcohol gel that clips to our trousers, so after every patient we examine we can use it ...of course the other alternative is not to lay a hand on the patients at all!!!!