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15 Cards in this Set
- Front
- Back
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1. What are the Three Kinds of
Gram Positive Cocci |
1. Staphylococcus
Streptococcus Enterococcus |
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2. What are the three kinds of Staph?
2. Two most common Staph A sources |
2. Staphylococcus aureus
Staphylococcus saphrophyticus Staphylococcus epidermitis 2. People and Fomites 15% adults have it in nose 50-80 % on healthcare workers |
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3. Two most common staph A diseases
3. Most common form of tox in Staph A |
3. Pus (abscess) (suppurative) and toxin
3. food at room temp + handlers toxic shock synd. |
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4.Most common type of food poisoning in the US : Staph Ar or Bacillus Cereus?
4. Type of toxin - entero, endo, or exo? |
4. Staph Ar
4. enterotoxin TSST-1 ; acts as superantigen |
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5. Examples of S. Auseus systemic infections
Virulence Factors |
5. Endo carditis, Septic arthritis (Most common) Osteomyelitis, Pneumonia
Capsule- facilitate adherence Peptidoglycan -Endotoxin-like activity Teichoic acid - Involved in complement activation Protein A - Binds to Fc region of IgG Reduces binding of phagocytes via FcR Inhibits comlement activation Catalase - converts h2o2 to water Coagulase - bact hide in clots |
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6. The two Coagulase Negative Staph are?
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6. S. saphrophyticus
S. epidermitis |
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7. Clincal manifestations and virulence of s. epidermidis
7. s. saphrophyticus resistant to this ABx, and UTI? |
7. Endocarditis and biofilm
7. novibiocin . 2nd most common cause of UTI in sexually active women |
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8. Streptococci are Gram Positive chain or diplococci that are classified based on two things:
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8. Hemolysis and Serologic reactivity
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9. 3 types of lysis are complete, incomplete, and none - GREEK?
9. Strep A vs. strep b is Based on antigenic differences carbohydrates of cell wall. What is the name the two? |
9. Beta (clear)
Alpha (Green) Gamma (red) Streptococcus pyogenes- Group A Streptococcus agalactiae- Group B |
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10. Where does GAS transiently colonize
and what new protein is seen? 10. Three conditions GAS is associated with |
10. Oropharynx and M - IgG against M protein important adaptive host defense
GAS is usually a secondary invader 10. Strep throat, scarlet fever and impetigo (also in staff a) |
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11. This sequallae of GAS is one of the leading causes of heart disease in 3rd wc
11. Layers of skin involved in erysidelas and cellulitis? |
11. Rheumatic Fever
11. upper and deeper. |
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12. Is GAS and enter, exo, or endotoxin
A, B, or C 12. GBS (name) causes three things in newborns? |
12. Exo - strep toxic shock synd. A is most important
12. s. agalactiae - Important cause of neonatal meningitis and neonatal sepsis Leading cause of infectious death in newborns |
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13. Where does GBS colonize?
13. Strep Viridans (mutans) causes what |
13. GI and GU tracts (we are the source)
13. Dental caries and bacterial endocarditis |
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14. This is the leading cause of serious infection worldwide?
Who is the reservior? Effect in kids? |
14. Streptococcus pneumoniae. This and GAS are most serious infect dis.
human reservior, direct P 2 P contact.. Causes otitis media in kids |
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15. How can you get Enterococci infections?
15. See any resistance to ABx |
15. Abdominal surgury and comtaminated wated
15. Yes, Vancomycin-resistant enterococci (plasmid-mediated)- very serious pathogen |
