Actinobacillus - Exam 2 Flashcards
Actinobacillis is gram ______.
Negative
True/False. Actinobacillis spp. is an extracellular pathogen.
True
Which two cell types do the adhesins of A. pleuropneumoniae target?
Nasal cavity and tonsillar crypts (carrier animals)
Terminal bronchioles and alveoli (pre-diseased animals)
Which tissue does Actinobacillis inhabit?
Mucosal membranes - oropharynx and GI tract
What is important for the transmission of Actinobacillis?
Carrier animals
Actinobacillus is incapable of surviving long term in the environment
What is the pore forming exotoxin produced by Actinobacillis?
RTX toxin (repeat in toxin)
Which toxin of Actinobacillus acts on leukocytes and causes degranulation, which leads to the lyses of erythrocytes?
Apx (Actinobacillus plueropneumoniae toxin)
What causes Wooden tongue in ruminants?
A. ligieresii
AKA Actinobacillosis, timber tongue
What is the common cause of epididymitits in young rams?
A. seminis
What causes pneumonia in young pigs during the colder months?
A. pleuropneumoniae
What is the cause of sleepy foal disease?
A. equuli subsp. equuli
Brain will have petechial hemorrhages
What causes pneumonia in horses?
Mixed infection of Streptococcus equi subsp. zooepidemicus and A. equuli subsp. haemolytica
