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Classification of pathogenic bacteria - Gram positive Flashcards Preview

Principles of disease JK > Classification of pathogenic bacteria - Gram positive > Flashcards

Flashcards in Classification of pathogenic bacteria - Gram positive Deck (16)
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1

Cocci

Staphylococci and streptococci

2

Staphylococci

Clusters

3

Streptococci

Chains

4

Coagulase test positive

Staphylococcus aureus - MSSA MRSA

5

Coagulase test negative

Skin commensals which can be pathogenic in contact with foreign body/ prostheses

6

Staphylococcus Aureus

Commensal carried in nose
Septicaemia, boils
Penicillin resistant ( beta lactamase production)

7

Alpha haemolytic

Partial haemolysis
Blood agar green
Streptococcus pneumonia
Veridans streptococci - oral flora cause endocarditis

8

Beta haemolytic

Groups A-G identified using Lancefield grouping but A,B + D most scientifically important
Tur blood agar clear and are completely haemolytic

9

Group A

Streptococcus pyogenes - necrotising fasciitis and cellulitis

10

Group B

Streptococcus agalactiae - neonatal sepsis, genital tract carriage

11

Group D

Enterococci and are non haemolytic - UTI

12

Clostridium difficile

- Increased risk with antibiotic use and spreads through spores
- detected using antigen detection in stool with ELISA
- pseudomembranous collitis

13

Clostridium perfingens

Found in soil and responsible for gas gangrene

14

Clostridium tetani

Toxins cause tetanus

15

Clostridium botulinum

Botox

16

Bacilus Anthracis

Cause anthrax

Decks in Principles of disease JK Class (26):

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