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Questions and Answers
Which of the following is a clinical finding of Staphylococcus aureus skin infection?
Which of the following is a clinical finding of Staphylococcus aureus skin infection?
- Tuberculosis
- Otitis media
- Pneumonia
- Cellulitis (correct)
How is Staphylococcus aureus transmitted?
How is Staphylococcus aureus transmitted?
- Through inhalation of airborne particles
- Through contaminated food
- Through mosquito bites
- Through direct contact with an infected person or fomite (correct)
What is the major virulence factor for Streptococcus pyogenes?
What is the major virulence factor for Streptococcus pyogenes?
- Flagella
- Lipopolysaccharide
- M protein (correct)
- Capsule
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Study Notes
- The lecture is about bacterial skin infections caused by Staphylococci and Streptococci.
- Staphylococcus aureus is a Gram-positive coccus found in the skin and nasopharynx.
- It can be transmitted through direct contact with an infected person or fomite.
- Clinical findings include folliculitis, furuncle, carbuncle, impetigo, and SSSS.
- Diagnosis is done through microscopic examination and culture.
- Treatment involves beta-lactam antibiotics like penicillin, but S. aureus can develop resistance.
- Patient care involves standard precautions and contact precautions for MRSA.
- Staphylococcus epidermidis is a normal skin flora and can cause infections in people with prosthetic equipment.
- Streptococcus pyogenes is a Gram-positive cocci responsible for soft tissue infections.
- M protein is the major virulence factor for S. pyogenes.
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