Lecture 6 - Staphylococci Flashcards Preview

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Flashcards in Lecture 6 - Staphylococci Deck (23):
1

Looking through a microscopy, staph looks like...

A bunch of grapes

2

Staphylococci

G+ coccus

3

Two forms of staph

Coagulase +/-

4

Coagulase + physical features and type of staph

Gold, staph aureus

5

Coagulase - type of staph

Epidermis and sarophyticus

6

Where does staph epidermidis colonize?

The skin, everyone has it

7

S. Aureus colonizes what species and where?

Humans and in the nose and on the skin

8

How is S. aureus spread?

Through fomites

9

What is the most common nosocomial infection?

S. aureus

10

S. aureus creates a distinct physical trait

Abscess full of neutrophils/puss located on the skin. These require drainage and antibiotics

11

How does staph kill WBCs?

Through the release of toxins (hemolysis) causing more wide spread and infection

12

Impetigo is most commonly found on who and with what physical features?

Children, pimple like (non-bullous) or fluid filled blisters (bulls)

13

Stye physical features

Infection around the eye causing swelling which eventually goes away on its own

14

Furuncle (BOIL) caused by

Infected hair folicle

15

Carbuncles caused by

Infection of many hair folicles

16

Osteomyelitis is...

Infected bone marrow which is very challenging to treat

17

Infective endocarditis is...

Infected heart valves causing lesions

18

What causes Toxic Shock Syndrome (TSS)

S. aureus/pyogenes

19

What caused Menstural TSS

High absorbancy tampons

20

How do tampons cause Menstural TSS

By colonizing staph inside of the vagina and by changing the regulation of toxxins

21

What happens when a super antigen is formed?

T-cells become over activated causing inflammatory response, cytokine storm and shock/organ failure

22

What toxin is specific for the menstrual TSS?

TSS Toxin-1

23

What happens when super antigen binds?

Activates T-cells