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nester05 - Chapter 5 Control of Microbial Growth Important...

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Chapter 5: Control of Microbial Growth
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Important Point:
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Control of Microbial Growth Methods are employed to destroy, remove, and/or inhibit the growth of microorganisms. This is either on inanimate objects or on body surfaces. Most of these approaches are non-selective meaning that they can negatively impact a diversity of microbial (and non-microbial) life forms. We can distinguish these microbial control methods into Physical and Chemical methods. “…simple hand washing with plain soap and water is considered the simple most important step in preventing the spread of many infectious diseases. Plain soap itself generally does not destroy many organisms; it simply aids in the mechanical removal of transient microbes, including most pathogens...”
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Important Terms
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Important Terms I’m not sure why these Ss are missing!
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Nosocomial Infections “Minimizing the numbers of microorganisms in a hospital is particularly important because of the danger of hospital-acquired, or nosocomial , infections. Hospitalized patients are often more susceptible to infectious agents because of their weakened condition. In addition, patients may be subject to invasive procedures such as surgery, which breaches the intact skin that would otherwise help prevent infection. Finally, pathogens are more likely to be found in hospitals because of the high concentration of patients with infectious disease. These patients may shed pathogens in their feces, urine, respiratory droplets, or other body secretions. Thus, hospitals must be scrupulous in their control of microorganisms . Nowhere is this more important than in the operating room, where instruments used in invasive procedures must be sterile to avoid introducing even normally benign microbes into deep body tissue where they could easily establish infection.”
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