Exam 2: Mycoplasma

Question 1

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

Answer 1

Mollicutes, soft skin

Question 2

Smallest free living bacteria

Answer 2

Mycoplasma

Question 3

T/F Mycoplasma have a cell wall

Answer 3

F

Question 4

T/F. Mycoplasma are gram negative

Answer 4

F. No gram stain because no cell wall

Question 5

T/F mycoplasm are cocobacilli shaped

Answer 5

F. pleomorphic

Question 6

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

Answer 6

T

Question 7

T/F Tx mycoplasma with penicillin

Answer 7

F. not susceptible

Question 8

Where is mycoplasma found in the animal

Answer 8

Mucous membranes of resp and repro tract

Question 9

Mycoplasma have an affinity for _____

Answer 9

ciliated epithelium

Question 10

How are mycoplasma transmitted?

Answer 10

Close contact

Question 11

T/f there are spp of mycoplasma that infect RBC

Answer 11

T

Question 12

T/F mycoplasma are fastidious

Answer 12

T. difficult to grow in lab

Question 13

T/F mycoplasma are extracellular pathogens

Answer 13

T

Question 14

how does mycoplasma persit in the cell

Answer 14

By antigenic variation

Question 15

What are the 2 ways mycoplasma cause dage

Answer 15

1. direct contact

2. indirect

Question 16

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

Answer 16

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

Question 17

Which spp. of mycoplasma causes enzootic pneumonia of swine

Answer 17

M. hyopneumoniae

Question 18

how is Mycoplasma hyopneumoniae spread?

Answer 18

direct contact

Question 19

What are the c/s of Mycoplasma hopneumoniae

Answer 19

Chronic resp. dz, cough, dec. wt.

Question 20

Where does M. hypopneumonia adhere?

Answer 20

ciliated epithelium, AV bronchi, bronchioles

Question 21

The mitogenic activity of Mycoplasma hyopneumoniae produces what?

Answer 21

BALT (cuffing pneumonia)

Question 22

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

Answer 22

impairs bacterial clearance

Question 23

How do you prevent M. hyopneumoniae?

Answer 23

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

Question 24

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

Answer 24

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

Question 25

Which spp. of mycoplasma of cattle is reportable

Answer 25

M. mycoides subsp. mycoides

Question 26

Whic spp of mycoplasma causes contagious bovine pleuropneumonia

Answer 26

M. mycoides subsp. mycoides

Question 27

Which spp of mycoplasma is the most virulelnt

Answer 27

M. mycoides subsp. mycoides

Question 28

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

Answer 28

Resp. distress coughing nasal discharge lethargy

Question 29

Type of mycoplasma that causes upper respiratory tract infection in cattle

Answer 29

M. bovis

Question 30

What are the 3 complications of mycoplasma bovis?

Answer 30

1. Bronchopneumonia 2. Mastitis 3. Arthritis

Question 31

What are the 5 spp. of mycoplasma that cause mastitis

Answer 31

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

Question 32

What is ureaplasma diversum

Answer 32

commensal in the lower urogenital tract that can cause infertility

Question 33

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

Answer 33

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

Question 34

Which spp of mycoplasma affecting goats is reportable

Answer 34

M. capricolum subsp. capripneumoniae

Question 35

What are the 2 mycoplasma reportable diseases of birds?

Answer 35

1. M. gallisepticum | 2. M. synoviae

Question 36

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

Answer 36

M. gallisepticum

Question 37

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

Answer 37

M. synoviae

Question 38

What are the two non reportable mycoplasma spp. of turkeys

Answer 38

1. M. meleagridis | 2. M. iowae

Question 39

2 Mycoplasma spp in cats

Answer 39

1. M. felis- resp. infe. | 2. M. gatae- arthritis

Question 40

Mycoplasma spp in horses

Answer 40

M. felis- plleuritis

Question 41

Mycoplasma spp in dogs

Answer 41

M. canis- aurogenital tract dz

Question 42

Mycoplasma spp in sheep

Answer 42

M. ovipneumoniae- pneumonia

Question 43

Mycoplasma spp in mice

Answer 43

M. pulmonis- resp dz

Question 44

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

Answer 44

Mycoplasma felis

Question 45

How are hemotrophic mycoplasma classified

Answer 45

by genetic relatedness

Question 46

T/F haemotrophic mycoplasma have not been grown in vitro

Answer 46

T

Question 47

What is the target cell of Mycoplasma hemofelis

Answer 47

Erythrocytes

Question 48

What disease is caused by mycoplasma hemofelis

Answer 48

Feline infectious anemia

Question 49

Which spp is affected by mycoplasma hemofelis

Answer 49

Cats

Question 50

c/s of Mycoplasma hemofelis

Answer 50

``` Fever Anemia Depression Weakness Icterus ```

Question 51

What are some differentials for Mycoplasma heofelis

Answer 51

Babesia, cytauxzoon felis, anemia

Question 52

What is the target cell fo Mycoplasma hemosuis

Answer 52

Erythrocytes

Question 53

Which spp is affected by Mycoplasma hemosuis

Answer 53

Pig

Question 54

Where can mycoplasma hemosuis be found in blood

Answer 54

Plasma and RBCs

Question 55

What is L-form bacteria?

Answer 55

strains of bacteria that lack cell walls