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Bacteriology > Exam 2: Mycoplasma > Flashcards

Exam 2: Mycoplasma Flashcards

1
Q

Mycoplasma belong to the class _____, which means bacteria with ________.

A

Mollicutes, soft skin

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2
Q

Smallest free living bacteria

A

Mycoplasma

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3
Q

T/F Mycoplasma have a cell wall

A

F

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4
Q

T/F. Mycoplasma are gram negative

A

F. No gram stain because no cell wall

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5
Q

T/F mycoplasm are cocobacilli shaped

A

F. pleomorphic

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6
Q

T/F. Mycoplasma are susceptible to drying because they lack a cell wall

A

T

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7
Q

T/F Tx mycoplasma with penicillin

A

F. not susceptible

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8
Q

Where is mycoplasma found in the animal

A

Mucous membranes of resp and repro tract

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9
Q

Mycoplasma have an affinity for _____

A

ciliated epithelium

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10
Q

How are mycoplasma transmitted?

A

Close contact

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11
Q

T/f there are spp of mycoplasma that infect RBC

A

T

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12
Q

T/F mycoplasma are fastidious

A

T. difficult to grow in lab

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13
Q

T/F mycoplasma are extracellular pathogens

A

T

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14
Q

how does mycoplasma persit in the cell

A

By antigenic variation

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15
Q

What are the 2 ways mycoplasma cause dage

A
  1. direct contact

2. indirect

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16
Q

What are the 4 spp of mycoplasma that infect pigs and what does each cause?

A

M. hyopneumoniae- Enzootic pneumonia
M. hyorhinis- polyserositis
M. hyosynoviae- polyarthritis
M. suis- Anemia

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17
Q

Which spp. of mycoplasma causes enzootic pneumonia of swine

A

M. hyopneumoniae

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18
Q

how is Mycoplasma hyopneumoniae spread?

A

direct contact

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19
Q

What are the c/s of Mycoplasma hopneumoniae

A

Chronic resp. dz, cough, dec. wt.

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20
Q

Where does M. hypopneumonia adhere?

A

ciliated epithelium, AV bronchi, bronchioles

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21
Q

The mitogenic activity of Mycoplasma hyopneumoniae produces what?

A

BALT (cuffing pneumonia)

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22
Q

How does mycoplasma hhyopneumonia infection predispose pig to other bacterial infections?

A

impairs bacterial clearance

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23
Q

How do you prevent M. hyopneumoniae?

A 
SPF herds
bio security
monitoring at slaughter
immunization
addressing secondary bacterial infections
24
Q

What are the 6 Mycoplasma that infect cattle and what do they cause

A

M. bovis- contagious bovine pleuropneumonia
M. mycoides subsp. mycoides- pneumonia/ mastitis
Ureaplasma diversum- granular vulvovaginitis
M. bovoculi- conjunctivitis
M. bovigenitalium- commensal
M. canadense- sporadic mastitis

25
Q

Which spp. of mycoplasma of cattle is reportable

A

M. mycoides subsp. mycoides

26
Q

Whic spp of mycoplasma causes contagious bovine pleuropneumonia

A

M. mycoides subsp. mycoides

27
Q

Which spp of mycoplasma is the most virulelnt

A

M. mycoides subsp. mycoides

28
Q

What are the c/s of Mycoplasma mycoides subsp. mycoides

A

Resp. distress
coughing
nasal discharge
lethargy

29
Q

Type of mycoplasma that causes upper respiratory tract infection in cattle

A

M. bovis

30
Q

What are the 3 complications of mycoplasma bovis?

A
  1. Bronchopneumonia
  2. Mastitis
  3. Arthritis
31
Q

What are the 5 spp. of mycoplasma that cause mastitis

A
  1. M. bovis
  2. M. californicum
  3. M. canadense
  4. M. alkalescens
  5. M. bovigentalium
32
Q

What is ureaplasma diversum

A

commensal in the lower urogenital tract that can cause infertility

33
Q

What are the two mains spp of mycoplasma that infect goats and what do they cause?

A
  1. M. capricolum subsp. capripneumoniae - contagious caprine pleuropneumonia
  2. M. agalactiae - contagious agalactia of sheep and goats
34
Q

Which spp of mycoplasma affecting goats is reportable

A

M. capricolum subsp. capripneumoniae

35
Q

What are the 2 mycoplasma reportable diseases of birds?

A
  1. M. gallisepticum

2. M. synoviae

36
Q

Which spp. of mycoplasma causes chronic respiratory diseses in chickens and turkeys

A

M. gallisepticum

37
Q

Which spp. of mycoplasma causes lameness and retarded growth in birds.

A

M. synoviae

38
Q

What are the two non reportable mycoplasma spp. of turkeys

A
  1. M. meleagridis

2. M. iowae

39
Q

2 Mycoplasma spp in cats

A
  1. M. felis- resp. infe.

2. M. gatae- arthritis

40
Q

Mycoplasma spp in horses

A

M. felis- plleuritis

41
Q

Mycoplasma spp in dogs

A

M. canis- aurogenital tract dz

42
Q

Mycoplasma spp in sheep

A

M. ovipneumoniae- pneumonia

43
Q

Mycoplasma spp in mice

A

M. pulmonis- resp dz

44
Q

horse with lower airway dz following transport is likely infected with:

A

Mycoplasma felis

45
Q

How are hemotrophic mycoplasma classified

A

by genetic relatedness

46
Q

T/F haemotrophic mycoplasma have not been grown in vitro

A

T

47
Q

What is the target cell of Mycoplasma hemofelis

A

Erythrocytes

48
Q

What disease is caused by mycoplasma hemofelis

A

Feline infectious anemia

49
Q

Which spp is affected by mycoplasma hemofelis

A

Cats

50
Q

c/s of Mycoplasma hemofelis

A 
Fever
Anemia
Depression
Weakness
Icterus
51
Q

What are some differentials for Mycoplasma heofelis

A

Babesia, cytauxzoon felis, anemia

52
Q

What is the target cell fo Mycoplasma hemosuis

A

Erythrocytes

53
Q

Which spp is affected by Mycoplasma hemosuis

A

Pig

54
Q

Where can mycoplasma hemosuis be found in blood

A

Plasma and RBCs

55
Q

What is L-form bacteria?

A

strains of bacteria that lack cell walls

Bacteriology (31 decks)

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