Bacteria Flashcards

1
Q

Neisseria spp.

A

Meningitidis - septicaemia and swelling on meninges
Gonorrhoea - urethritis and inflammation
Gram negative
PCR test

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2
Q

Morexella catarrhalis

A

Respiratory tract infections

Negative

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3
Q

Coliforms

A

Gram negative bacilli
Enterobacteriacae
Commensals of large intestine
Lactose formation test

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4
Q

Escherichia coli

A

Ferments lactose
Gram negative
UTI endotoxins and exotoxins

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5
Q

Salmonella enterica

A

Gram negative
Doesn’t ferment lactose
Diarrhoea

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6
Q

Salmonella typhi

A

Causes typhoid fever
Isolated from blood cultures and faeces
Gram negative

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7
Q

Campylobacter spp.

A

Curved gram negative
Microaerophilic
Diarrhoea

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8
Q

Helicobacter pylori

A

Negative
Curved rods
Damages mucous and creates ulcers
Cancer causing

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9
Q

Haemophilia influenza

A

Coco bacilli
Respiratory tract infection
Negative

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10
Q

Pseudomonas spp.

A

Hospital acquired infections
Gram negative
CF

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11
Q

Bactericides fragilis

A

Commensalism
Can spread
anaerobe
Causes abscesses

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12
Q

Acid and alcohol fast bacilli how do you identify?

A

Special stains Zhiel Neelsen or Auramine and culture

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13
Q

Tuberculosis

A

Negative

Mycobacterium

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14
Q

Spirochaetes examples and how you identify

A
Long spiral shaped 
Dark ground microscopy 
Immunofluorescence 
Serology 
Syphillus 
Lyme disease
Leptospirosis 
Gram negative
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15
Q

Chlamydia

A

Gram negative
Obligate bacteria
Serology
Culture only in cell lines

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16
Q

Cocci and bacilli mean?

A

Cocci round

Bacilli rod shaped

17
Q

Staph and strept mean?

A

Staph- clusters

Strept-chains

18
Q

Staphylococci

A

Positive
Coagulate test, positive means MRSA, negative commensal
Major infection problem

19
Q

Coagulate negative staphylococci

A

Range of species
S. Lugdunensis
Skin commensals
Form biofilms in presence of foreign bodies

20
Q

Streptococci

A
Positive 
Alpha (pneumonia) and beta haemolytic (range of types A pyogenes necrotising, B agalactiae (meningitis and bacteraemia) D enterococcus UTI commensals and non haemolytic) non haemolytic
21
Q

Streptococci test?

A

Alpha turns blood agar green
Beta - clears blood agar
Non haemolytic - no effect

22
Q

Clostridium difficile

A

Difficult to culture
Positive
Diarrhoea
Spreads by spores

23
Q

Clostridium perfringens

A

Soil
Positive
Contaminated food
Gas gangrene

24
Q

Clostridium tetani

A

Toxin leads to tetanus
Toxoid for immunisation
Positive

25
Q

Clostridium botulinum

A

Positive
Botox
Spores

26
Q

Bacillus anthracis

A

Positive
Anthrax
Spores