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Flashcards in Actinobacillus - Exam 2 Deck (12)
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1
Q

Actinobacillis is gram ______.

A

Negative

2
Q

True/False. Actinobacillis spp. is an extracellular pathogen.

A

True

3
Q

Which two cell types do the adhesins of A. pleuropneumoniae target?

A

Nasal cavity and tonsillar crypts (carrier animals)

Terminal bronchioles and alveoli (pre-diseased animals)

4
Q

Which tissue does Actinobacillis inhabit?

A

Mucosal membranes - oropharynx and GI tract

5
Q

What is important for the transmission of Actinobacillis?

A

Carrier animals

Actinobacillus is incapable of surviving long term in the environment

6
Q

What is the pore forming exotoxin produced by Actinobacillis?

A

RTX toxin (repeat in toxin)

7
Q

Which toxin of Actinobacillus acts on leukocytes and causes degranulation, which leads to the lyses of erythrocytes?

A

Apx (Actinobacillus plueropneumoniae toxin)

8
Q

What causes Wooden tongue in ruminants?

A

A. ligieresii

AKA Actinobacillosis, timber tongue

9
Q

What is the common cause of epididymitits in young rams?

A

A. seminis

10
Q

What causes pneumonia in young pigs during the colder months?

A

A. pleuropneumoniae

11
Q

What is the cause of sleepy foal disease?

A

A. equuli subsp. equuli

Brain will have petechial hemorrhages

12
Q

What causes pneumonia in horses?

A

Mixed infection of Streptococcus equi subsp. zooepidemicus and A. equuli subsp. haemolytica