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s of i

s of i. Causes of infection. Normal Flora. What are they?. Where are they found?. on the skin in the eyes in the nose in the mouth in the upper throat in the lower urethra in the lower intestine especially in the large intestine

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s of i

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  1. s of i Causes of infection

  2. Normal Flora What are they? Where are they found? on the skin in the eyes in the nose in the mouth in the upper throat in the lower urethra in the lower intestine especially in the large intestine basically all of the body surfaces exposed to the external environment. • bacteria, fungi, and protozoa that live on or within the bodies of animals and plants • do not cause disease in healthy individuals • they are commensalisms -neither hurt, harm, nor benefit the carrying host

  3. Normal flora Areas such as the axilla (armpit), the perineum (groin) and the toe webs provide typically moist regions for bacterial growth. Lactobacillus predominate in the vagina. These organisms generally lower the pH to around 4-5. Bacteria in the gut makes enzymes for digestion. 20% weight of human waste is bacteria from colon.

  4. Transient Flora What are they? • are members of the normal flora that are not always present • are present for only a few days, weeks, or months before disappearing • removal is achieved primarily by the mechanical action of hand washing

  5. Transient flora Social hand washingwith plain soap and water removes most transient microorganisms from moderately soiled hands. Hygienic hand washing or disinfection is a procedure where an antiseptic detergent preparation is used for washing or hands are disinfected with alcohol (alcoholic rub). This is a more effective method to remove and kill transient microorganisms. Surgical hand washingis performed with the aim of removing and killing the transient flora and decreasing the resident flora in order to reduce the risk of wound contamination if surgical gloves become damaged. Agents are the same as for the hygienic hand wash.

  6. Transient flora

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