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Bacterial Infection of Wound

Bacterial Infection of Wound. By. Dr. Humodi A. Saeed Associate Prof. of Medical Microbiology College of Medical Laboratory Science Sudan University of Science and Technology E mail address: Biotechsust@hotmail.com. Bacterial Infection of Wound. The Wound. Definition

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Bacterial Infection of Wound

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  1. Bacterial Infection of Wound By Dr. Humodi A. Saeed Associate Prof. of Medical Microbiology College of Medical Laboratory Science Sudan University of Science and Technology E mail address: Biotechsust@hotmail.com

  2. Bacterial Infection of Wound

  3. The Wound Definition A wound is a breach (damage) in a normal tissue (May be superficial or deep) resulting accidentally or of planned surgery.

  4. The Wound Types 1. Early acute wound 2. Long-term chronic wounds

  5. Bacterial Infection of Wound • Wound contamination • Wound colonization • Wound Infection

  6. Wound contamination The presence of non-replicating bacteria in the wound. Bacterial Infection of Wound

  7. Bacterial Infection of Wound Wound contamination • All chronic wounds are contaminated by bacteria.

  8. Wound contamination contaminants come from the indigenous microflora and/or the environment. Bacterial Infection of Wound

  9. Wound colonization: The presence of replicating bacteria adherent to the wound in the absence of injury to the host. Bacterial Infection Wound

  10. Bacterial Infection of Wound • Wound colonization: Most of the following organisms are normal skin flora. 1. S. epidermidis, 2.other coagulase –ve Staphylococci. 3. Corynebacterium sp. 4. Brevibacterium sp. 5. Proprionibacterium acnes

  11. Bacterial Infection of Wound Wound Infection The presence of replicating bacteria within a wound that cause host injury.

  12. Bacterial Infection of Wound Wound Infection • Staphylococcus aureus, • Beta-hemolytic Streptococcus (S. pyogenes, S. agalactiae) 3. E. coli 4. Proteus • Klebsiella • Anaerobes • Pseudomonas • Acinetobacter .

  13. Bacterial Infection of WoundLab. Diagnosis • specimen collection. • Tissue biopsy • Needle aspirate • Wound swab • (Surface or Deep wound)

  14. Bacterial Infection of WoundLab. Diagnosis • Suspected organism Bite wounds Eikenella corrodens, Pasteurella multocida, Pasteurella canis, Staphylococcus aureus, group A Streptococcus, mixed anaerobe, many gram-negative bacilli. • Surgical wounds ­ Staphylococr:us aureus, coagulase-negative Staphylococcus, groups A and B Streptococci, Clostridium perfringens, Corynebacterium species many other bacteria. • Traumatic wounds Bacillus species, Staphylococcus aureus, group A Strepiococcus, many gram­ negative bacilli.

  15. Thank you I would like to thank Dr. Neal R. Chamberlain

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