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Flashcards in E2 Genus Mycoplasma Deck (34)
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1

What is unique about Mycoplasma bacteria?

Smallest free-living unicellular organism

2

What is special about the structure of Mycoplasma bacteria?

Lack a cell wall
= No peptidoglycan

3

What tissue are Mycoplasma bacteria trophic for?

Mucus membranes

4

How host specific are Mycoplasmas?

Very host-specific
= NOT zoonotic

5

What is unique about the appearance of colonies of Mycoplasma bacteria in culture?

Fried-egg appearance

6

How does Mycoplasma infect host cells?

It doesn't!
(associates with the surface)

7

What are the two most effective methods of diagnosing Mycoplasma infection?

1. Clinical signs
2. Serology (only bacteria so far where this is good)

8

Are there vaccines against Mycoplasma infection?

Yes
(but only decrease severity and mortality)

9

What clinical signs are caused by Mycoplasma bovis?

1. Mastitis
2. Polyarthritis
3. Pneumonia
4. Otitis in calves

10

What species causes highly fatal bovine suppurative pleuropneumonia?

Mycoplasma mycoides ssp. mycoides SC

11

Where are Mycoplasma mycoides ssp. mycoides SC infections found?

Asia and Sub-Africa

12

Is there a vaccine against Mycoplasma mycoides ssp. mycoides SC?

Yes

13

What is the most common clinical sign in calves with Mycoplasma mycoides ssp. mycoides SC infection?

Unilateral otitis

14

Are some species of Mycoplasma commensals?

Yes!

15

What two species of Mycoplasma are pathogenic in sheep & goats?

1. Mycoplasma mycoides ssp. capri
2. Mycoplasma capripneumoniae

16

Why are the pathogenic Mycoplasma species in sheep & goats so good at causing pneumonia?

Causes ciliostasis
(slows clearance of mucus)

17

What species causes mastitis in sheep & goats?

Mycoplasma agalactiae

18

What species causes pneumonia in swine?

Mycoplasma hyopneumoniae

19

What is the disease name for infections from Mycoplasma hyopneumoniae?

Enzootic pneumonia

20

What are the most common clinical signs of Mycoplasma hyopneumoniae in pigs?

1. Chronic cough (damages cilia)
2. transient diarrhea
3. Reduced weight gain

21

What is the prevalence of Mycoplasma hyopneumoniae infection in pigs?

Very common

22

What species of Mycoplasma is a commensal in swine?

Mycoplasma hyorhinis

23

What are two species that seem to be unaffected by Mycoplasma infection?

Dogs & horses

24

What species of Mycoplasma caused fatal conjunctivitis in house finches?

Mycoplasma gallisepticum

25

What species of Mycoplasma causes synovitis in poultry?

Mycoplasma synoviae

26

What species of Mycoplasma causes severe disease in turkeys and is of great economic importance?

Mycoplasma meleagridis

27

What ages are most affected by Mycoplasma meleagridis infection?

Young turkeys
(infected by adult carriers)

28

What disease is caused by Mycoplasma felis?

Conjunctivitis in kittens

29

Can Mycoplasma felis be a commensal bacteria in cats?

Yes!

30

What disease is caused by Mycoplasma haemofelis?

Feline infectious anemia