Staphylococci Flashcards
This species of staph is coagulase positive.
S. aureus
This species of staph is an opportunistic pathogen commonly associated with the female urogenital tract.
S. saprophyticus
This species is most commonly associated with pus-forming infections of the skin.
S. aureus
Enzymes which collectively act on host tissue to establish bacterial infections and relate to virulence are referred to as _________?
Aggressins
Name 5 aggressins.
- Hyaluronidase
- Lipase
- DNAse
- Staphylokinase
- Biofilms
This aggressin loosens tissue via depolymerization and is related to septicemia.
Hyaluronidase
This aggressin acts on oils and fats in the skin and is seen in furuncles and carbuncles.
Lipase
This aggressin degrades host DNA.
DNAse
This aggressin dissolves fibrin clots, inactivates plasminogen, and may be used as an anti-clotting medication.
Staphylokinase
Toxic Shock Syndrome is caused by which organism?
S. aureus
Furuncles are associated with which organism?
S. aureus
Carbuncles are associated with which organism?
S. aureus
Scaled Skin Syndrome or Ritter’s Disease is associated with which organism?
S. aureus
MRSA stands for what?
Methicillin Resistant Staphylococcus Aureus
What substance can cause an ion imbalance in the intestines resulting in diarrhea and vomiting?
Enterotoxins
What test differentiates Streptoccoci from Staphylococci?
Catalase. Staph species are positive.
Which staph species is highly opportunistic, but generally not regarded as pathogenic unless identified in conjunction with disease?
S. epidemidis
S. aureus grows best on which 2 media?
Blood agar and chocolate agar
Which media will not grow staphylococcus species?
MacConkey agar
Usually S. aureus is pathogenic. What cultures might this NOT be the case?
respiratory cultures
