You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is nosocamial infection after how many hours ? and explain in detail?
*Any infection causing illness that was not present or in its incubation period when the subject entered hospital or received treatment in outpatient clinic. *Infections are considered Nosocomial if they first appear 48 hours or more after hospital admission or within 30 days after discharge. *"Nosocomial" comes from two Greek words- "nosus" meaning "disease"+"komeion" meaning "to take care of"----disease contracted by a patient while under medical care. ref : harrisons 21st ed