Enterobacteriaceae (Enteric) Flashcards Preview

PHAR1602 Microbiology > Enterobacteriaceae (Enteric) > Flashcards

Flashcards in Enterobacteriaceae (Enteric) Deck (8)
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1
Q

Enteric - Gram positive or negative?

A

Gram negative

2
Q

Examples of enteric bacteria

A

Salmonella species, escherichia coli, yersinia pestis, kleibsiella, shigella

3
Q

Key features of enteric bacteria

A
Rod shaped
Faculative anaerobes
Motive via flagella
Nonsporulating
Ferment sugars to produce lactic acid
Oxidase negative, catalase positive
4
Q

Virulence factors

A
LPS endotoxins
Antigens e.g. O, H, K
Capsules to evade phagocytosis
Fimbriae
Exotoxins
Siderophores (pierce cells)
Haemolysis
Type 3 secretion system
5
Q

Diseases caused by E.coli

A

Gastroenteritis, septicaemia, UTIs, neonatal meningitis, pneumonia

6
Q

Escherichia coli O157:H7 symptoms

A

Abdominal pain, bloody diarrhoea, severe/fatal haemorrhagic colitis, haemolytic uremic syndrome (i.e. Kidney failure)

7
Q

Yersinia pestis causes what illness

A

Plague, disease of domestic and wild rodents, humans are accidental host

8
Q

Bubonic plague pathology

A

Y.pestis causes swelling in lymph nodes aka buboes