Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

BACTERIOLOGY & MYCOLOGY LECTURE > MORAXELLA > Flashcards

MORAXELLA Flashcards

1
Q

What are the predisposing factors of M. bovis?

A
  1. Prolonged exposure to sunlight (UV light)
  2. Breed susceptibility
  3. Concurrent Viral infections (Infectious Bovine Rhinotracheitis)
  4. Mycoplasma infections
  5. Ureaplasma infections
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Virulent strains of M. bovis produces what colonies?

A

Rough colonies with beta hemolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the clinical signs accompanying keratoconjunctivitis?

A
  1. Photophobia
  2. Blepharospasm
  3. Profuse lacrimation
  4. Mucopurulent discharge
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The preferred diagnostic method for M. bovis is ?

A

FAT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

M. bovis infection is most prevalent during what season?

A

Summer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

M. ovis affects what animals? What disease does it induce?

A
  • Sheep and goats
  • Keratoconjunctivitis in mule, deer, and moose
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

M. bovis occurs as a commensal of ?

A

Conjunctiva and nasopharynx of cattle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

M. cuniculi affects what animals?

A

Rabbits

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Moraxella spp. ferment CHO. True or False?

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

M. phenolpyruvica affects what animals?

A
  • Cattle
  • Sheep
  • Swine
  • Goats
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Describe the morphology of Moraxella.

A
  • Gram negative
  • Non-motile
  • Non-spore forming
  • Rods/coccobacilli
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

M. bovis causes what disease?

A

Infectious bovine keratoconjunctivitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Moraxella spp. require X and V factors. True or False?

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

M. caviae affects what animals?

A

Guinea pigs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Moraxella is oxidase positive but catalase negative. True or False?

A

False, catalase positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

M. lacuna affects what animals? What diseases does it induce?

A
  • Aborted equine fetuses
  • Septicemia in goats
  • Viral pneumonia in goats and encephalitis
17
Q

Describe the colonies of M. bovis.

A
  • Colonies are usually round, translucent, grayish-white, 1-2 mm in diameter and surrounded b a narrow zone of beta-hemolysis.
  • After 2-3 days, colonies enlarge and becomes somewhat flattened with raised centers.
18
Q

M. bovis immunization methods last for only for a short amount of time. True or False?

19
Q

M. bovis has pili. True or False?

A

True, (Type IV)

20
Q

M. caprae affects what animals?

21
Q

M. bovis affects what animals?

A

Cattle and horses

22
Q

M. bovis is more common in beef or dairy cattle?

A

Beef cattle

23
Q

Growth of M. bovis is enhanced by ?

A

Addition of blood/serum

24
Q

M. bovis spread commonly by ?

A

Flies
* Musca autumnalis
* M. domestica
* Stomoxys calcitrans

25
Q

M. boevrei affects what animals?

26
Q

M. canis affects what animals?

A

Dogs and cats

BACTERIOLOGY & MYCOLOGY LECTURE (37 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions