Exam 3: Mannheimia hemolytica, Bibersteinia, Haemophilus, and Histophilus

Question 1

Mannheimia hemolytica used to be:

Answer 1

Pasteurella hemolytica

Question 2

What are the capsule types of M. hemolytica

Answer 2

A-F

Question 3

Does M. hemolytica survive well in the environ.

Answer 3

no

Question 4

VF of M. hemolytica

Answer 4

1. Leukotoxin
2. Transferrin binding p
3. capsule
4. endotoxins (LPS)
5. Fimbriae

Question 5

What does M. hemolytica cause in ruminants

Answer 5

pneumonia

Question 6

Which serovars of M. hemolytica do sheep get

Answer 6

All of them

Question 7

what serovars of M. hemolytica do cows get

Answer 7

1, 2, 6

Question 8

Where is M. hemolytica commonly found in sheep

Answer 8

nose

Question 9

What causes Bacterial broncho pneumonia in calves

Answer 9

M. hemolytica

Question 10

What is the triggor for Bronchopneumonia in calves

Answer 10

Stress

Question 11

Where does M. hemolytica replicate in calf

Answer 11

nasopharynx

Question 12

What is a secondary pathogen of bronchopneumonia in calves

Answer 12

P. multocida

Question 13

How do you Dx M. haemolytica

Answer 13

Culture

Question 14

How do you tx M. haemolytica

Answer 14

Abx and corticosterroids

Question 15

Who becomes infected with Bibersteinia trehalosi

Answer 15

sheep

Question 16

what does B. trehalosi cause in sheep

Answer 16

Septicaemiae

Question 17

DDx of Bibersteinia trehalosi

Answer 17

Clostridium perfringens enterotoxemia

Question 18

What are the cause of B trehalosi

Answer 18

Stress

Question 19

Haemophilus is ___ dependent meaning stapph. is necessary for culture

Answer 19

NAD

Question 20

Haemophilus are commensals where?

Answer 20

Mucosae of resp. and repro tract

Question 21

VF of Haemophilus

Answer 21

1. Endotoxin
2. Fimbrae
3. Neuroamidase
4. TBP

Question 22

What is the disease caused by H. parasuis

Answer 22

Glasser dz

Question 23

what does glasser dz cause in pigs

Answer 23

1. septicemia
2. meningitis
3. polyserositis

Question 24

How do you tx glasser dz

Answer 24

antimicrobials

Question 25

how do you prevent glasser dz

Answer 25

vacc.

Question 26

What does H. felis cause in cats?

Answer 26

Chronic pneumonia and conjunctivitis

Question 27

How do you incubate Histophilus somnei

Answer 27

incubate 2 days with 5-10% CO2

Question 28

where does H. somnei colonize

Answer 28

Mucosal surfaces of ruminants

Question 29

C/S of H. somnei

Answer 29

``` Septicemia CNS Arthritis conjunctivits Myocarditis Pneumonia ```

Question 30

VF of H. somnei

Answer 30

1. LOS 2. OMPs 3. Host cell interaction 4. Biofilms

Question 31

Which VF of H. somnei is used in activation of caspases and induction of apoptosis

Answer 31

Host cell interaction

Question 32

WHich VF of H. somnei cause immune evasion and complement resistance

Answer 32

LOS (Lippligosaccharides)

Question 33

What are the two OMP VFs of H. somnei

Answer 33

1. Transferrin binding proteins | 2. Ig binding proteins

Question 34

How do you Dx H. somnei

Answer 34

Bacterial culture

Question 35

How do you Tx H. somnei

Answer 35

Abx

Question 36

How do you prevent H. somnei

Answer 36

vacc.