endogenous {Ans: Produced within the body}opening sterile packages {Ans: Before opening a sterile item, perform thorough hand hygiene, assemble supplies needed, clean working area and maintain working area above waist level; pick up touching only one inch surrounding the item.}portal of entry {Ans: entrance through skin, mucous lining, or mouth}carrier/vector {Ans: a person or animal that does not become ill but harbors and spreads an organism, causing disease in others}systemic {Ans: an infection that affects the entire body instead of just a single organ or part has potential to be fatal}mode of transmission {Ans: method or vehicle of transportation}