Gram Negative Bacteria Flashcards
1
Q
What are Gram negative organisms split into?
A
Cocci, Bacilli and Cocco-Bacilli
2
Q
What are Bacilli divided into?
A
Aerobic, anaerobic (facultive and non) and microaerophilic
3
Q
Subgroups of anaerobic bacilli
A
Lactose fermenters and non-lactose fermenters
4
Q
Examples of anaerobic lactose fermenters
A
- Escherichia Coli
- Klebsiella Spp.
5
Q
Escherichia Coli
A
- Anaerobic lactose fermenters
- UTI
- Enterohaemorrhagic E. coli - bloody diarrhoea and haemolytic uraemia syndrome
- Enterotoxogenic E. coli - Traveller’s diarrhoea
6
Q
Klebsiella Spp.
A
- Anaerobic lactose fermenter
- UTI
- Hospital aquired pneumonia
7
Q
Examples of anaerobic non-lactose fermenters
A
- Proteus Spp.
- Shigella Spp.
- Pseudomonas Spp.
- Salmonella Spp.
8
Q
Shigella Spp.
A
- Anaerobic non-lactose fermenter
- Diarrhoea
- Dysentery (blood & pus in stools)
9
Q
Proteus Spp.
A
- Anaerobic non-lactose fermenter
- UTI
10
Q
Pseudomonas Spp.
A
- Anaerobic non-lactose fermenter
- Water and soil coloniser - drains, sinks, mops
- May contaminate medical equipment
- Hospital aquired cause of sepsis - UTI, bacteraemia, pneumonia
11
Q
Salmonella Spp.
A
- Anaerobic non-lactose fermenter
- Diarrhoea
- Salmonella Enterica
- Salmonella Typhi - typhoid fever and constipation
12
Q
Example of an aerobic bacillus
A
Legionella Spp.
13
Q
Examples of curved microaerophilic bacilli
A
- Campylobacter Spp.
- Helicobacter Pylori
- Vibro Cholerae
14
Q
Campylobacter Spp.
A
- Curved microaerophilic bacillus
- Likes low O2
- Faecal-oral route
- Source is domestic animals, chicken
- Foul smelling then blood diarrhoea
15
Q
Helicobacter Pylori
A
- Curved microaerophilic bacillus
- Human stomach habitat
- Damages mucosa and causes ulcers
- Risk of gastric adenocarcinoma
