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Microbiology > Small Pleomorphic Gram - Bacilli > Flashcards

Small Pleomorphic Gram - Bacilli Flashcards

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Biology 101 flashcards
0
Q

Haemophilus normally inhibit URT of humans except

A

H.ducreyi

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1
Q

Blood lover

A

Haemophilus

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2
Q

Growth factors of haemophilus

A

X (hemin)

V (NAD)

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3
Q

Vitamins for haemophilus

A

X

V

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4
Q

Human pathogens

A

H.influenzae
H.ducreyi
H.aegypticus

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5
Q

Main cause of meningitis in children

A

H.influenzae

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6
Q

Vitamins for haemophilus

A

X

V

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7
Q

Pvf of h.influenzae

A

Polysaccharide capsule

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8
Q

Most virulent serotype

A

B

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9
Q

Leasing cause of meningitis in unvaccinated children

A

Type B

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10
Q

It is for haemophilus influenzae serotype B

A

HIb

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11
Q

Is the agent of chancroid or soft chancre

A

Haemophilus ducreyi

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12
Q

Culture: haemophilus ducreyi

A

Clumpy appearance

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13
Q

Other term for h.aegypticus

A

Koch-weeks bacillus

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14
Q

Etiologic agent of brazilian purpuric fever

A

H.influenzae biogroup aegypticus

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15
Q

Etiologic agent of pink eye conjunctivitis

A

H.aegypticus

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16
Q

Only x growth factor

A

H.ducreyi

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17
Q

Microscopy: h.ducreyi

A

School of fish
Railroad tracks
Fingerprints

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18
Q

Preferred agar for observing hemolysis

A

Horse blood

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19
Q

Sheep red cells release

A

NADase

20
Q

V factor producing bacteria

A

S.aureus
S.pneumoniae
Neisseria spp

21
Q

Lysing of rbc’s by heat releases

A

Both x and v factors

Inactivates nadase

22
Q

CAP with 1 % IsoVitalex or Vitox

A

H.aegypticus

23
Q

Test for differentiating the heme producing species of haemophilus

A

Porphyrin test

24
Q

Other term for porphyrin test

A

Delta-aminolevulinic acid test

25
Q

Rgt used in porphyrin test

A

Kovac’s rgt

26
Q

End product of porphyrin test

A

Porphyrin- reddish orange

27
Q

+ result of porphyrin test

A

Red color

28
Q 
H
A
C
E
K
A 
Haemophilus spp
Aggregatibacter actinomycetemcomitans
Cardiobacterium hominis
Eikenella corodens
Kingella spp
29
Q

Part of the normal oral flora

A

Hacek group

30
Q

Will not grow on Mac conkey agar

A

Hacek group

31
Q

Days of growth of hacek group

A

7-14 days

32
Q

Foam loving

A

Aggregatibacter aphrophilus

33
Q

Star shaped

A

Aggregatibacter actinomycetemcomitans

34
Q

Etiologic agent in development of periodontitis

A

Aggregatibacter actinomycetemcomitans

35
Q

Most prevalent hacek species causing endocarditis

Isolated from dental plaque and gingival scrapings

A

Aggregatibacter aphrophilus

36
Q

Virulence factors of a.actinomycetemcomitans

A

Collagenase

Leukotoxin

37
Q

Rosette formation

A

Cardiobacterium hominis

38
Q

Pitting may be seen

A

Cardiobacterium hominis

39
Q

Have the tendency to resist decolorization

A

Kingella

40
Q

Most pathogenic in kingella

A

K.kingae

41
Q

Causative agent of osteoarthritis

A

K.kingae

42
Q

Bangs bacillus

A

Brucella

43
Q

Sand appearance

A

Brucella

44
Q

Disease in brucella

A

Undulant fever

45
Q

Species in brucella

A

B.melitensis

B.abortus

46
Q

Most virulent species

A

B.melitensis

B.suis

47
Q

Characterized by normal temp. in the morning followed by high temp in the afternoon and evening

A

Undulant fever

48
Q

B.abortus requires this for growth

A

Niacin

Microbiology (10 decks)

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