Burkholderia, Taylorella, Francisella - Gutierrez

Question 1

Burkholderia ________ is host restricted to equids

Answer 1

mallei

Question 2

Can B.mallei survive in the environment?

Answer 2

No

Question 3

B. mallei survives and replicates within ___________

Answer 3

macrophages

Question 4

B. mallei resulting in pulmonary and nasal forms is known as _________

Answer 4

Glanders

Question 5

the skin form of B. mallei is known as _______

Answer 5

Farcy

Question 6

What is the biological vector that transmits B. mallei from host to host?

Answer 6

House flies

Question 7

Natural infections of B. mallei are reported in:

Answer 7

• Horses
• Dogs
• Cats
• Shoats
• Camels
• Guinea pigs/ hamsters

Question 8

Which animal species are resistant to B. mallei?

Answer 8

1. Cattle
2. Birds
3. Rats
4. Pigs

Question 9

What is “strauss reaction” ?

Answer 9

male guinea pigs inoculated within the peritoneum with the cultures of B. mallei

Question 10

Intradermal Mallein test can be used to diagnose _________

Answer 10

Burkholderia mallei

Question 11

How to proceed if an animal tests positive on a Mallein test?

Answer 11

Animals must be culled if positive for B. mallei on Mallein test

Question 12

Which Burkholderia spp is a saprophyte?

Answer 12

B. pseudomallei

Question 13

Which of the following is motile: B. mallei or B. pseudomallei

Answer 13

B. pseudomallei is motile

Question 14

Which bacteria spp causes Whitmore disease?

Answer 14

B. pseudomallei

Question 15

Reservoir for B. pseudomallei?

Answer 15

Rodents

Question 16

What bacteria spp causes red eye disease in cats?

Answer 16

B. pseudomallei

Question 17

B. pseudomallei causes abortion only in ________

Answer 17

Sheep

Question 18

Clinical diagnosis of __________ is difficult due to the multitude of CS and syndrome

Answer 18

B. pseudomallei

Question 19

What does B. pseudomallei look like on culture? What culture media is used?

Answer 19

Flat, wrinkled purple colonies on Ashdown’s medium

Question 20

Melieidosis is caused be __________ spp

Answer 20

B. pseudomallei

Question 21

Differences between melieidosis vs glanders?

Answer 21

-Melioidosis affects a wide host range

-Meliodosis is a saprophyte

-Prevalance is unaffected by elimination of infected animals

^^ all characteristic of B. pseudomallei

Question 22

Most virulent Francisella spp?

Answer 22

F. tularensis subsp. tularensis (Type A)

Question 23

Who can be infected with Francisella tularensis?

Answer 23

Wide range of hosts!!

Question 24

How is Francisella tularensis transmitted?

Answer 24

1. Direct contact
2. Aerosols
3. Ingestion (contaminated water or food)
4. Biting insects/ticks

Question 25

How is tularemia transmitted to humans?

Answer 25

Tick bite

Question 26

Reservoirs of Francisella tularensis?

Answer 26

Rodents and lagomorphs (rabbits)

Question 27

What bacteria spp causes rabbit fever?

Answer 27

Francisella tularensis

Question 28

What are the most consistent lesions associated with Francisella tularensis?

Answer 28

white foci of necrosis on liver and sometimes spleen, lung, and lymphnodes

Question 29

Francisella tularensis has many different forms: name 4

Answer 29

1. Ulceroglandular 2. Glandular 3. Oropharyngeal 4. Pneumonic

Question 30

What animal species are resistant to tularemia?

Answer 30

Pigs and cattle

Question 31

_____________ resides exclusively in the equine genital tract of both sexes

Answer 31

Taylorella equigenitalis

Question 32

_________ is the causative agent of contagious equine metritis

Answer 32

Taylorella equigenitalis

Question 33

Taylorella equigenitalis is found in the ________ of mares

Answer 33

Clitoral fossa

Question 34

Taylorella equigenitalis is found in the ________ of stallions

Answer 34

Urethral fossa

Question 35

Taylorella equigenitalis shows no clinical signs in __________

Answer 35

Stallions

Question 36

True or False: Taylorella equigenitalis causes permanent infertility in mares

Answer 36

False - temporary infertility

Question 37

What specimens should be collected if you suspect Taylorella equigenitalis in a **mare**?

Answer 37

Swabs from: -clitoral fossa -clitoral sinuses -endometrium during estrus

Question 38

What specimens should be collected if you suspect Taylorella equigenitalis in a **stallion**?

Answer 38

3 swabs from each area: -Urethra -Urethral fossa -penile sheath -pre-ejaculatory fluid