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15 Cards in this Set

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What are the 3 genera of Gram + cocci?
Staphylococcus
Streptococcus
Enterococcus
What are the 3 medically important staphylococci?
Staph aureus
Staph saphrophyticus
Staph epidermitis
What are 2 sources of transmission of S. aureus?
1. People (e.g., external nares, on skin, oropharynx, perineum, feces, person to person)
2. Fomites (survive well in extremes of heat, cold, and dried states)
Local staphylococcal infection leads to the formation of a collection of pus called an ______.
Abscess
What are some early events that are characteristic of acute inflammation?
Red, inflamed appearance
Rapid and extensive infiltration of neutrophils (in response to host and bacterial factors)
What is the host response to focal inflammation?
To surround the area within a fibrin capsule.
(The center of abscess is usually necrotic and consists of dead neutrophils, dead and live bacteria and fluid.)
What are some suppurative infections associated with S. aureus?
Impetigo
Folliculitis
Furuncles or boils
Carbuncles
Bacteremia and endocarditis
Pneumonia and empyema
Osteomyelitis
Septic arthritis
What are some S. aureus toxin-mediated diseases?
Food poisoning
Toxic shock syndrome
Scalded skin syndrome
Bullous impetigo
Infections containing pus are referred to as ______ infections
Suppurative
The most common type of food poisoning in the US results from what genera of bacteria?
Staphylococcus
In this type of food poisoning, heating of food may kill bacteria but not inactivate toxin.
Staphyloccal Food Poisoning
This syndrome is due to enterotoxins or TSST-1
Toxic Shock Syndrome
Toxins involved in this syndrome act as superantigens
Toxic Shock Syndrome
This syndrome is mediated by exfoliative toxins and is characterized by intense inflammation, desquamation, and superinfection can lead to death.
Scalded skin syndrome
This systemic infection often caused by S. aureus can occur on right side of heart in IDU.
Endocarditis.