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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

A

+

25
Q

Brucella: Urease

A

+

26
Q

What is different about B. Ovis?

A

Oxidase + urease negative

27
Q

Brucella: growth requirements

A

Fastidious

28
Q

Brucella: oxygen requirements

A

Aerobic

29
Q

Brucella: Morphology

A

Coccobacillus

30
Q

What is the come method by which humans become infected with Brucella?

A

Cows milk that is unpasteurized

31
Q

What is different about the transmission vector of Brucella in cattle?

A

Low infectious dose and high number of bacteria in aborted fetus causes it to spread fast

32
Q

What does brucella have an affinity for?

A

Reproductive organs

33
Q

How does Brucella prefer to travel through the body?

A

within macrophages

34
Q

What is seen in dogs infected with B. Canis?

A

Abortions occasionally

Inferitilty in males

35
Q

Where is B. Abortus most commonly seen in the US?

A

yellowstone

36
Q

What animals most commonly show B. Abortus infections?

A

Elk + Bison

37
Q

What is seen in Bovine with B. Abortus?

A

Abortion + Infertility

38
Q

What is seen in pigs with B. Suis?

A

Abortion + Inferitility

Orchitis + Arthritis

39
Q

What is the most dangerous Brucella?

A

B. melintensis

40
Q

What animals are infected with B. Melintensis

A

Goats and Sheep

41
Q

How do people get B. Melintensis?

A

Dairy products - fresh cheese

42
Q

Where is B. Melintensis most common?

A

Mediterranean + Middle east

43
Q

What is seen in goats and sheep with B. melintensis?

A

Abortion + Orchitis + Arthritis

44
Q

What does B. Ovis cause in sheep?

A

Abortion

45
Q

Where is B. Ovis most commonly found?

A

New Zealand + Australia

46
Q

What are specific tests used to find Brucella?

A

Milk ring test

Rose-bengal plate

47
Q

what is a major problem with brucella testing?

A

many false negatives with serological testing

48
Q

What is the treatment for Brucella?

A

None

49
Q

What is the Coxiella that has the most zoologic impact?

A

C. burnetii

50
Q

What does C. Burnetti cause in humans?

A

Q fever

51
Q

Why is C. Burnetti so terrifying?

A

Lowest infectious dose of all just need one bacteria

52
Q

What are the symptoms of Q fever?

A

High fever - Severe flu

53
Q

Where does C. Burnetti tend to localize?

A

Genital tracts + Mammary glands

54
Q

What does C. Burnetti use to infect the host cells?

A

T4SS

55
Q

Where does C. Burnetti like to reside cellularly

A

Phagolysosome

56
Q

What does Coxiella do to goats?

A

Caprine abortion
Gray-brown exudate covering placenta
Intercotyledonary areas
Necrotizing vascultis in placenta

57
Q

What does Coxiella cause sporadic abortions in?

A

Sheep + Cattle + Cats

58
Q

What is a specific stain used to ID Coxiella?

A

MZN method

Bacteriology (28 decks)

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