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Microbial Growth Control: Strategies and Terminology

This chapter explores key concepts in microbial growth control, including methods to decrease microbial load through inhibition and reduction. It covers decontamination techniques for inanimate objects, disinfection processes that majorly reduce microbial presence, and antisepsis for living tissue. Definitions of crucial terms such as sterilization, bactericidal, bacteriostatic, and bacteriolytic are provided, along with examples like using bleach for cleaning or iodine for wound care. Understanding these terms is vital for effective infection control in various environments.

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Microbial Growth Control: Strategies and Terminology

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    1. Microbial Growth Control Chapter 20

    2. Terminology “decrease the microbial load by limiting growth” (inhibition) or reducing the load (killing) Decontamination Inanimate objects; inhibit growth, but not really reduce the initial load; not sterile, but safe to handle Wiping a table after a meal Disinfection Inanimate object; use of a physical agent to inhibit growth and majorly reduce the initial load Using bleach to clean a table Antisepsis Same as disinfection, but on external living tissue Iodine on a wound Antibiosis In vivo killing or inhibition; internal tissues Antibiotic given for an infection

    3. More Terminology Sterilization A completely different process than the rest Removing all viable organisms and spores by killing or removing Surgical instruments Bacteriocidal versus Bacteriostatic versus bacteriolytic Viri- Fungi-

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