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Bacteriology > Lecture 22 - Tayorella, Brucella, and Coxiella > Flashcards

Lecture 22 - Tayorella, Brucella, and Coxiella Flashcards

1
Q

Why are these three bacteria considered regulated?

A

Can be aerosolized

Low infectious dose

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2
Q

Taylorella: catalase

A

+

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3
Q

Taylorella: oxidase

A

+

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4
Q

Taylorella: phosphatase

A

+

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5
Q

Taylorella: Oxygen requirements

A

Microaerophilic

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6
Q

Taylorella: MacConkey

A

No growth

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7
Q

What is the important Tayolorella to vet medicine?

A

T. equigenitalis

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8
Q

What does T. equigenitalis cause?

A

Contagious equine metritis

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9
Q

What is CEM?

A

Inflammation of endometrium

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10
Q

What are the signs a horse has CEM?

A

Mucopurulent discharge from vulva/vagina

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11
Q

Why is there mucopurulent discharge with CEM?

A

Neutrophils migrate into utreus

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12
Q

What is needed to transport TE?

A

Amies charcoal transport media

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13
Q

What is T. Equigenitalis cultured on?

A

Selective media - Timoney’s CEM agar

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14
Q

What is important to legally know about T. Equigenitalis?

A

reportable disease `

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15
Q

What is the treatment for T. Equigenitalis?

A

External wash w/ chlorhexadine
Daily nitrofurazone ointment
5 to 7 days of interauterine antibiotic irrigation

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16
Q

What are the five important Brucella of vet importance?

A 
Abortus 
Canis 
Suis 
Melitensis 
Ovis
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17
Q

B. Abortus: Species

A

Cattle

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18
Q

B. Canis: Species

A

Dog

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19
Q

B. Suis: Species

A

Swine

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20
Q

B. Melintensis: Species

A

Goats + Sheep

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21
Q

B. Ovis: Species

A

Sheep

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22
Q

Brucella: Motility

A

none

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23
Q

Brucella: Catalase

A

+

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24
Q

Brucella: Oxidase

25
Brucella: Urease
+
26
What is different about B. Ovis?
Oxidase + urease negative
27
Brucella: growth requirements
Fastidious
28
Brucella: oxygen requirements
Aerobic
29
Brucella: Morphology
Coccobacillus
30
What is the come method by which humans become infected with Brucella?
Cows milk that is unpasteurized
31
What is different about the transmission vector of Brucella in cattle?
Low infectious dose and high number of bacteria in aborted fetus causes it to spread fast
32
What does brucella have an affinity for?
Reproductive organs
33
How does Brucella prefer to travel through the body?
within macrophages
34
What is seen in dogs infected with B. Canis?
Abortions occasionally | Inferitilty in males
35
Where is B. Abortus most commonly seen in the US?
yellowstone
36
What animals most commonly show B. Abortus infections?
Elk + Bison
37
What is seen in Bovine with B. Abortus?
Abortion + Infertility
38
What is seen in pigs with B. Suis?
Abortion + Inferitility | Orchitis + Arthritis
39
What is the most dangerous Brucella?
B. melintensis
40
What animals are infected with B. Melintensis
Goats and Sheep
41
How do people get B. Melintensis?
Dairy products - fresh cheese
42
Where is B. Melintensis most common?
Mediterranean + Middle east
43
What is seen in goats and sheep with B. melintensis?
Abortion + Orchitis + Arthritis
44
What does B. Ovis cause in sheep?
Abortion
45
Where is B. Ovis most commonly found?
New Zealand + Australia
46
What are specific tests used to find Brucella?
Milk ring test | Rose-bengal plate
47
what is a major problem with brucella testing?
many false negatives with serological testing
48
What is the treatment for Brucella?
None
49
What is the Coxiella that has the most zoologic impact?
C. burnetii
50
What does C. Burnetti cause in humans?
Q fever
51
Why is C. Burnetti so terrifying?
Lowest infectious dose of all just need one bacteria
52
What are the symptoms of Q fever?
High fever - Severe flu
53
Where does C. Burnetti tend to localize?
Genital tracts + Mammary glands
54
What does C. Burnetti use to infect the host cells?
T4SS
55
Where does C. Burnetti like to reside cellularly
Phagolysosome
56
What does Coxiella do to goats?
Caprine abortion Gray-brown exudate covering placenta Intercotyledonary areas Necrotizing vascultis in placenta
57
What does Coxiella cause sporadic abortions in?
Sheep + Cattle + Cats
58
What is a specific stain used to ID Coxiella?
MZN method

Bacteriology (28 decks)

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