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Microbiology > Fastidious GNRs > Flashcards

Fastidious GNRs Flashcards

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Biology 101 flashcards
1
Q

Haemophilus species General Info

A

GS = GNCB
Require special growth media containing X, V, and XV factor
Needs increased CO2 content
Non-motile

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2
Q

Haemophilus influenzae Growth Info

A

Growth only on Choc
No Hemolysis on Horse Blood
Requires X and V Factor
ALA = Negative (Pathogenic)
Beta Lactamase Test Required

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3
Q

Haemophilus influenzae Disease

A

Meningitis - Children Under 6
Epiglottis
Otitis media
Acute Sinusitis
URT infection and chronic bronchitis
Pneumonia
Bacteremia
Septicemia
Endocarditis
Conjuctivities

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4
Q

Haemophilus influenzae biotype agypticus Disease

A

Conjunctivities (Pink Eye)

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5
Q

Haemophilus parainfluenzae/paraphrophilus Growth

A

Growth on Choc
No Hemolysis on Horse Blood
Requires V Factor
ALA = Positive (non-pathogenic)

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6
Q

Haemophilus hemolyticus Growth

A

Growth on Choc
Beta hemolysis on Horse Blood
Requires X and V Factor
ALA = Negative (Pathogenic)

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7
Q

Haemophilus parahaemolyticus Growth

A

Growth on Choc
Beta Hemolysis on Horse Blood
Requires V Factor
ALA = Positive (non-pathogenic)

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8
Q

Haemophilus ducreyi Growth

A

Growth on BAP and Choc (slow growing)
GS = School of Fish
Soft Chancroid (papules and ulcers) on genitals and lymph nodes
More common in tropical areas

** Sexually Transmitted **

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9
Q

Capnocytophaga carimorsus Disease

A

Endocarditis
Blood Cultures

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10
Q

Capnocytophaga carimorsus Identification

A

GS: GNR or GNCB
Catalase = Positive
Oxidase = Positive (Variable)
G/M/L/S: +/+/+/-
Dog/cat bite pathogen

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11
Q
A
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11
Q

Capnocytophaga carimorsus G/M/L/S

A

+/+/+/-

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12
Q

Aggregatabacter actinomycetemcomitans Disease

A

Endocarditis
Blood Culture

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13
Q

Aggregatabacter actinomycetemcomitans Reactions

A

GS: GNR or GNCB
Catalase = Positive
Oxidase = Varibale
Indole = Negative
MAC: NG

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14
Q

Aggregatabacter actinomycetemcomitans G/M/L/S (Glucose/Maltose/Lactose/Sucrose)

A

+/+/-/-

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15
Q

Aggregatabacter actinomycetemcomitans LAO

A

-/-/-

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16
Q

Capnocytophaga species Disease

A

Endocarditis
Blood Culture
Human Oral Flora

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17
Q

Capnocytophaga species Reactions

A

Gliding motility
Yellow/orange pigment - colony sweats
Catalase = Negative
Oxidase = Negative

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18
Q

Capnocytophaga species G/M/L/S

A

+/+/V/V

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19
Q

Capnocytophaga species LAO

A

-/-/-

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20
Q

Kingella denitrificans Disease

A

Endocarditis
Blood Culture

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21
Q

Kingella denitrificans Reactions

A

Catalase = Negative
Oxidase = Positive or Variable
Nitrate = Positive
Urea = Negative
Indole = Negative
Esculin = Negative
Gelatin = Negative
Citrate = Negative
Non-motile

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22
Q

Kingella denitricans G/M/L/S

A

+/-/-/-

23
Q

Kingella kingae Disease

A

Endocarditis
Blood Culture

24
Q

Kingella kingae Reactions

A

Catalase = Negative
Oxidase = Positive or variable
Nitrate = Negative
Non-motile

25
Q

Kingella kingae Morphology

A

2 Colony types
Pinpoint at 48 hours
1) Soft Beta
2) Spreading, corroding

26
Q

Kingella kingae G/M/L/S

A

+/+/-/-

27
Q

Aggregatibacter aphrophilus Disease

A

Endocarditis
Blood Culture

28
Q

Aggregatibacter aphrophilus Morphology

A

Colonies have yellow tinge
Associated with tongue piercing
Factory Requirement: V variable

29
Q

Aggregatibacter aphrophilus Reactions

A

Catalase = Negative
Oxidase = Positive or variable
ALA = May be weak positive

30
Q

Aggregatibacter aphrophilus G/M/L/S

A

+/+/+/+

31
Q

Cardiobacterium hominis Disease

A

Endocarditis
Blood Culture

32
Q

Cardiobacterium hominis Morphology

A

GS: Teardrops, dumbells
BAP & Choc: ppt growth at 48 hrs, may pit agar

33
Q

Cardiobacterium hominis Reactions

A

Catalase = Negative
Oxidase = Positive or varibale
Indole = Positive

34
Q

Cardiobacterium homins G/M/L/S

A

+/V/-/+

35
Q

Eikinella corrodens Disease

A

Blood Culture
Closed fist injuries
Endocarditis
Bacteremia
Respiratory Tract Infections
Head and Neck Infections
Periodontal Infections

36
Q

Eikinella corrodens Reactions

A

GS: GNR - slender
Smells like bleach
Catalase = Negative
Oxidase = Positive or Variable

37
Q

Eikinella corrodens G/M/L/S

A

-/-/-/-

38
Q

Eikinella corrodens LAO

A

+/-/+

39
Q

Neisseria species General Characteristics

A

Aerobic
GS: GNDC
Oxidase = Positive
Catalase = Positive - most species
Non-motile
Acid from oxidation of carbohydrates (not fermentation)

40
Q

Neisseria gonorrhoeae Info

A

Sexually transmitted disease
Growth best on Choc
Beta Lactamase

41
Q

Neisseria gonorrhoeae G/M/L/S

A

+/-/-/-

42
Q

Neisseria meningitidis Info

A

Humans only natural host
Growth on Choc best
Oxidase = Positive

43
Q

Neisseria meningititids Disease

A

Meningitis
Septicemia
Meningoencephalitis
Pneumonia
Arthritis
Urethritis

44
Q

Neisseria meningitidis G/M/L/S

A

+/+/-/-

45
Q

Neisseria lactamica Info

A

Growth best on Choc

46
Q

Neisseria lactamica G/M/L/S

A

+/+/+/-

47
Q

Neisseria sicca/mucosa Info

A

Growth best on Choc

48
Q

Neisseria sicca/mucosa G/M/L/S

A

+/+/-/+

49
Q

Moraxella catarrhalis Info

A

Growth best on Choc
Oxidase = Positive
DNAse = Positive
Butyrate esterase = Positive
Catarrhalis disk = Positive
Beta Lactamase

50
Q

Moraxella catarrhalis G/M/L/S

A

-/-/-/-

51
Q

Moraxella catarrhalis Disease

A

Children = otitis media & sinusitis
Adult = bronchitis, pneumonia, bacteremia, endocarditis, meningitis, eye, wounds, and urogenital infections

52
Q

Niesseria flavescens and polysaccharea

A

Rarely associated with infection

53
Q

N. sicca, N. Flava, N. subflava, N. perflava, N. mucosa

A

Rarely causes septicemia, Endocarditis, meningitis, pneumonia, septic arthritis

54
Q

Niesseria elongata Disease

A

Endocarditis
Septicemia
Osteomyelitis

Microbiology (9 decks)

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