Bacteria Classification Flashcards

1
Q

How are Aerobic G+ves subdivided

A

Cocci / Bacilli

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2
Q

How are Aerobic G+ve Cocci subdivided

A

Chains / Clusters

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3
Q

How are Aerobic G+ve Cocci - Chains (Streptococcus) subdivided

A

Haemolysis - Alpha (partial), Beta (full) or Gamma (none)

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4
Q

How are Aerobic G+ve Cocci - Clusters (Staphylococcus) subdivided

A

Coagulation - Positive or negative

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5
Q

Give all Gram +ve Cocci - chains - Alpha haemolytic and what they cause

A

Strep. Pneumoniae - Pneumonia / meningitis

Strep. Viridans - Endocarditis

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6
Q

Give al Gram +ve Cocci - chains - Beta haemolytic and non haemolytic and what they cause

A

Beta - Strep. A (throat and skin infections)
Strep. B (Neonatal meningitis)

Non-haemolytic - Enterococcus - gut commensal, UTI

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7
Q

Give all Gram +ve cocci - clusters - coagulation +ve and what they cause

A

Staph. Aureus - wounds, skin infections etc

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8
Q

Give all Gram +ve cocci - clusters - coagulation -ve and what they cause

A

Coagulation -ve e.g. Staph. epidermidis - skin commensals, IV line infections

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9
Q

How are aerobic Gram +ve bacilli subdivided

A

Small / Large

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10
Q

How are small aerobic Gram +ve bacilli subdivided

A

Corynebacterium sp. (Corynebacterium diptheriae / diptheroids) / or not Listeria monocytogenes

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11
Q

How are large aerobic Gram +ve bacilli subdivided

A

They are all Bacillus sp. - Bacillus cerus or Bacillus anthraxis

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12
Q

How are Gram +ve anaerobes subdivided

A

Cocci / Bacilli

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13
Q

How are Gram +ve anaerobic bacilli subdivided

A

Clostridium sp. - Clostridium tetani, Clostridium perfringens and Clostridium difficile

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14
Q

What does strep. pneumoniae cause

A

Pneumonia, meningitis

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15
Q

What does strep. viridans cause

A

Endocarditis

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16
Q

What does Group A strep cause

A

Throat and skin infections etc

17
Q

What does Group B strep cause

A

neonatal meningitis

18
Q

What does Enterococcus cause

A

UTI’s. It is also a gut commensal

19
Q

What does staph aureus cause

A

Wound and skin infections etc

20
Q

What does staph epidermidis cause

A

IV line infections. It is also a skin commensal

21
Q

What does Corynebacterium diptheriae cause

A

Diptheria

22
Q

What does diptheroids cause

A

Skin commensals

23
Q

What does listeria monocytogenes cause

A

Meningitis

24
Q

What does bacillus cerus cause

A

Food poisoning

25
Q

What does bacillus anthraxis cause

A

Anthrax

26
Q

What does Clostridium tetani cause

A

Tetanus

27
Q

What does Clostridium perfringens cause

A

Gas gangrene

28
Q

What does Clostridium difficile cause

A

Antibiotic associated colitis