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Finals Exam > Bacte Lec: Fusobacterium & Bacteroides > Flashcards

Bacte Lec: Fusobacterium & Bacteroides Flashcards

(60 cards)

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1
Q

Non-spore forming anaerobic include:

A
  • Gram (-) bacilli
  • Gram (+) cocci
  • Gram (-) bacilli
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2
Q

They are present in large number on?

A

the mucous membranes and intestinal tract of animals

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3
Q

Gram negative anaerobic bacilli make up more than __% of the bacteria in the intestinal tract

A

90%

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4
Q

Bacteria causing disease in human and animals

A

Gram Negative Anaerobic Non-sporeforming Bacilli

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5
Q

Gram Negative Anaerobic Non-sporeforming Bacilli belong to the family?

A

Bacteroidaceae

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6
Q

Bacteroides corrodens has been renamed ?

A

Eikenella corrodens

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7
Q

Prevotella melaninogenica, formerly B. melaninogenica; involved in?

A

Infections in animals

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8
Q

It is associated with oral infections in horses and cats

A

Prevotella heparinolyticus (B. heparinolyticus)

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9
Q

Associated with summer mastitis in cattle

A

Porphyromonas levii

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10
Q

Causes contagious foot rot in sheep

A

Dichelobacter nodosus (B. nodosus)

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11
Q

These bacteria are normal flora on mucous membranes:

A

Peptostreptococcus and Peptococcus

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12
Q

Peptostreptococcus and Peptococcus are what type?

A

Gram Positive Anaerobic Non-sporeforming Cocci

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13
Q

What is the type species of peptostreptococcuss?

A

Peptostreptococcus anaerobius

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14
Q

Modern name for Peptostreptococcus magnus

A

Finegoldia magna

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15
Q

Only species of Peptococcus

A

Peptococcus niger

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16
Q

It is associated with ovine foot rot

A

Peptococcus niger

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17
Q

Is the causative agent of cystitis and pyelonephritis in swine

A

Actinobaculum suis

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18
Q

Where is the location of A. suis in boars that serve as source of infection?

A

in preputial diverticulum

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19
Q

A. suis is transmission

A

During breeding

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20
Q

T/F: A. suis is disease is descending and affects both male and female resulting to death in pigs without clinic signs.

A

False: Disease is ascending and limited to females and results in death of sows without clinical signs

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21
Q

T/F: In Actinobaculum suis, Penicillin is not effective.

A

False: Penicillin effective if given early but not in chronic cases

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22
Q

It is frequently isolated from animals but not considered pathogenic; normal flora of female genital tract

A

Lactobacillus

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23
Q

Actinobaculum, Lactobacillus, & Propionibacterium are what type of bacteroides?

A

Gram-positive Anaerobic Non-sporeforming Bacilli

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24
Q

Bacteroides that is associated with dairy products and skin (acne) but non-pathogenic in animals

A

Propionibacterium

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25
Frequently invade _____ with _____which provide favorable _____condition for their growth
Damaged tissues, necrosis, aneorobic
26
What are the characteristic of infections of these bacteria?
Necrotic, gangrenous (often with clostridia) and suppurative foul-smelling conditions
27
These bacteria causes what?
Abscesses in lung, liver and brain; pyometritis; cystitis and urinary tract infections, postsurgical abscesses, diarrheal
28
What are the anaerobic jar system that eliminate oxygen?
Brewer, Torbal and GasPak systems
29
Pre-reduced media and media containing reducing agents such as?
cooked meat medium and thioglycolate broth
30
It detects volatile and non- volatile fatty acids produced by anaerobes
Gas liquid chromatography analysis
31
Where do you collect specimens associated with these bacteria
Tissues and pus from abscesses and suppurative material
32
T/F: Specimens must be cultured immediately and prevent exposure to O2
True
33
It is a commensal of alimentary tract and mucous membranes
Fusobacterium necrophorum
34
What are the biotypes of F. necrophorum?
Biotypes: A, B, AB and C
35
F. necrophorum biotype that causes bovine liver abscesses
Biotype A and B
36
F. necrophorum biotype that affects ruminal contents and lesions
Biotype B
37
F. necrophorum biotype B is more virulent than A?
Biotype A more virulent than B
38
What biotype is Fusobacterium pseudonecrophorum, now F. varium; infrequent opportunist in humans
Biotype C
39
Biotype of F. necrophorum subsp. funduliforme
Biotype B
40
Biotype of F. necrophorum subsp. necrophorum
Biotype A
41
F. necrophorum infections are frequently mixed with what bacteria that causes liver abscesses in cattle?
Archanobacterium pyogenes
42
What are the virulence factors of F. necrophorum?
- Endotoxin and a potent leukotoxin - Extracellular products (such as hemolysin, hemagglutinin, adhesin, platelet aggregation factor, protease and Dnase) - Capsulated strains more virulent for mice
43
T/F: F. necrophorum is a primary invader in necrotic stomatitis, pharyngitis and enteritis.
False: Secondary invade
44
General term for F. necrophorum infection is ?
Necrobacillosis
45
Thrush is caused by? and what animal is affected?
Fusobacterium necrophorum causes thrush and horses are affected.
46
Fusobacterium necrophorum in cattle causes?
Metritis, cellulitis, mastitis and calf diphtheria
47
Fusobacterium necrophorum in cattle is found in?
Found in necrotic areas of the mouth, pharynx, and trachea
48
Fusobacterium necrophorum in sheep causes?
Frequent secondary invader in lip and leg ulcerations (primary cause is ulcerative dermatosis virus)
49
Fusobacterium necrophorum together with Archanobacterium pyogenes causes what in sheep?
Causes foot abscesses or ovine interdigital dermatitis, abortion
50
Fusobacterium necrophorum causes what in swine?
Principal cause of “bull nose” from injury caused by ringing boars
51
Fusobacterium necrophorum in swine is the secondary invader of?
Swine dysentery and necrotic enteritis
52
Fusobacterium necrophorum in fowl causes?
Involved in avian diphtheria, primary cause is fowl pox virus
53
What are the characteristic of Gram negative rods in diagnosis?
Short rods, long filaments and moniliform bodies seen
54
What are the colony characteristics of these bacteria
Small, smooth, convex and whitish yellow in color with narrow zone of alpha or beta hemolysis
55
Comprises 10 species, all recovered from clinical specimens
Bacteroides fragilis group
56
How many species does Bacteroides fragilis group have?
10
57
Most common anaerobe causing infections in humans, occasionally in farm and companion animals
Bacteroides fragilis
58
Bacteroides fragilis produces this which causes accumulation of fluid in ligated intestinal loops of lambs and calves
endotoxin
59
What is the enterotoxin of Bacteroides fragilis?
Fragilysin
60
It is an extracellular zinc metalloprotease
Fragilysin

Finals Exam (16 decks)

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