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Disinfection is defined as the

  • A.inhibition of growth for as long as the agent is present
  • B.thermal or chemical destruction of pathogenic and other microorganisms
  • C.validated removal of every viable microorganism including spores
  • D.mechanical washing away of soil and organic material

Answer: B

Disinfection kills pathogens and many other organisms by heat or chemicals, but unlike sterilization it carries no requirement to destroy bacterial spores. That is why a disinfected instrument is not a sterile one, however clean it looks.

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