Burkholderia, Taylorella, Francisella - Gutierrez Flashcards
Burkholderia ________ is host restricted to equids
mallei
Can B.mallei survive in the environment?
No
B. mallei survives and replicates within ___________
macrophages
B. mallei resulting in pulmonary and nasal forms is known as _________
Glanders
the skin form of B. mallei is known as _______
Farcy
What is the biological vector that transmits B. mallei from host to host?
House flies
Natural infections of B. mallei are reported in:
- Horses
- Dogs
- Cats
- Shoats
- Camels
- Guinea pigs/ hamsters
Which animal species are resistant to B. mallei?
- Cattle
- Birds
- Rats
- Pigs
What is “strauss reaction” ?
male guinea pigs inoculated within the peritoneum with the cultures of B. mallei
Intradermal Mallein test can be used to diagnose _________
Burkholderia mallei
How to proceed if an animal tests positive on a Mallein test?
Animals must be culled if positive for B. mallei on Mallein test
Which Burkholderia spp is a saprophyte?
B. pseudomallei
Which of the following is motile: B. mallei or B. pseudomallei
B. pseudomallei is motile
Which bacteria spp causes Whitmore disease?
B. pseudomallei
Reservoir for B. pseudomallei?
Rodents
What bacteria spp causes red eye disease in cats?
B. pseudomallei
B. pseudomallei causes abortion only in ________
Sheep
Clinical diagnosis of __________ is difficult due to the multitude of CS and syndrome
B. pseudomallei
What does B. pseudomallei look like on culture? What culture media is used?
Flat, wrinkled purple colonies on Ashdown’s medium
Melieidosis is caused be __________ spp
B. pseudomallei
Differences between melieidosis vs glanders?
-Melioidosis affects a wide host range
-Meliodosis is a saprophyte
-Prevalance is unaffected by elimination of infected animals
^^ all characteristic of B. pseudomallei
Most virulent Francisella spp?
F. tularensis subsp. tularensis (Type A)
Who can be infected with Francisella tularensis?
Wide range of hosts!!
How is Francisella tularensis transmitted?
- Direct contact
- Aerosols
- Ingestion (contaminated water or food)
- Biting insects/ticks
How is tularemia transmitted to humans?
Tick bite
Reservoirs of Francisella tularensis?
Rodents and lagomorphs (rabbits)
What bacteria spp causes rabbit fever?
Francisella tularensis
What are the most consistent lesions associated with Francisella tularensis?
white foci of necrosis on liver and sometimes spleen, lung, and lymphnodes
Francisella tularensis has many different forms: name 4
- Ulceroglandular
- Glandular
- Oropharyngeal
- Pneumonic
What animal species are resistant to tularemia?
Pigs and cattle
_____________ resides exclusively in the equine genital tract of both sexes
Taylorella equigenitalis
_________ is the causative agent of contagious equine metritis
Taylorella equigenitalis
Taylorella equigenitalis is found in the ________ of mares
Clitoral fossa
Taylorella equigenitalis is found in the ________ of stallions
Urethral fossa
Taylorella equigenitalis shows no clinical signs in __________
Stallions
True or False: Taylorella equigenitalis causes permanent infertility in mares
False - temporary infertility
What specimens should be collected if you suspect Taylorella equigenitalis in a mare?
Swabs from:
-clitoral fossa
-clitoral sinuses
-endometrium during estrus
What specimens should be collected if you suspect Taylorella equigenitalis in a stallion?
3 swabs from each area:
-Urethra
-Urethral fossa
-penile sheath
-pre-ejaculatory fluid
