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Bacteriology II > Campylobacter (Exam 4) > Flashcards

Campylobacter (Exam 4) Flashcards

1
Q

Campylobacter is a gram (negative/positive), curved _______.

A

negative
rod

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2
Q

(T/F) Campylobacter is Cytochrome C oxidase positive.

A

True

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3
Q

(T/F) Campylobacter utilizes carbohydrates.

A

False

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4
Q

In terms of oxygen requirement, Campylobacter is __________ to _________.

A

microaerophilic
anaerobic

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5
Q

(T/F) Campylobacter is hemolytic.

A

False (non-hemolytic)

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6
Q

(T/F) Campylobacter is zoonotic.

A

True

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7
Q

(T/F) Campylobacter uses siderophores to steal iron from the host.

A

False (rely on other organisms)

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8
Q

Campylobacter _______ is an obligate parasite which infects ruminants.

A

fetus

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9
Q

Within Campylobacter fetus, which subspecies causes Bovine Genital Campylobacteriosis?

A

C. fetus subspecies venerealis

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10
Q

The main cause of infertility in cattle in the US:

A

C. fetus subspecies venerealis

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11
Q

What 2 clinical signs occur with cattle infected with C. fetus subspecies veneralis?

A

infertility
abortion

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12
Q

Bulls with Bovine Genital Campylobacteriosis have libido loss, weight loss, but NO ________ or ________.

A

infertility
acquired immunity

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13
Q

Bovine Genital Campylobacteriosis is difficult to detect in (old/young) bulls, while the other are easily infected and become carriers.

A

young

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14
Q

How is Bovine Genital Campylobacteriosis transmitted?

A

venereal (natural or AI)

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15
Q

The main infection site for C. fetus subspecies venerealis in females is ______ while males it is _______.

A

uterus
prepuce

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16
Q

_____ & ____ antibodies immobilize bacteria and prevent adherence during Bovine Genital Campylobacteriosis infection.

A

IgG
IgA

17
Q

______ is the major protective antibody in the cervix and vagina with Bovine Genital Campylobacteriosis infection.

A

IgA

18
Q

________ tests or culture are the two main ways to diagnose Bovine Genital Campylobacteriosis.

A

immunological

19
Q

Which species & subspecies of Campylobacter causes Ovine Epizootic Abortion?

A

C. fetus subspecies fetus

20
Q

What is unique about C. fetus subspecies fetus that makes it anti-phagocytic and allows for antigenic variation?

A

produces S-layer

21
Q

(T/F) C. fetus subspecies fetus is part of the normal flora of sheep.

A

False (cattle)

22
Q

What is the major clinical sign in Ovine Epizootic Abortion?

A

abortion

23
Q

(T/F) Abortion occurs without prior clinical signs in Ovine Epizootic Abortion.

A

True

24
Q

How is C. fetus subspecies fetus transmitted?

A

fecal-oral (ingestion)
NOT venereal!

25
Q

Which type of secretion system does Campylobacter jejuni subsp. jejuni use that resembles a phage or virus infecting DNA into the host cell?

A

Type VI (6)

26
Q

Which species are affected by C. jejuni subsp. jejuni? (4)

A

sheep
dogs
cats
humans

27
Q

(T/F) C. jejuni subspecies jejuni is part of normal GI flora.

A

True

28
Q

(T/F) C. jejuni subspecies jejuni is zoonotic so humans can get it from their pets.

A

True

29
Q

What clinical sign in seen in dogs and cats infected with C. jejuni subsp. jejuni? Sheep?

A

dogs/cats: enteritis (diarrhea)
sheep: abortion

30
Q

Humans secondarily infected with Campylobacter jejuni subsp. jejuni develop what problem?

A

food poisoning

31
Q

In terms of C. jejuni subspecies jejuni, a presumptive diagnosis can be made via ______ or ______ microscopy while culture is used as a definitive diagnosis.

A

darkfield or phase

32
Q

Which Campylobacter is a fastidious, microaerophilic thermophile affecting poultry?

A

C. hepaticus

33
Q

What disease does Campylobacter hepaticus cause in poultry?

A

Spotty Liver Disease

34
Q

How is Spotty Liver Disease transmitted?

A

fecal-oral (raw milk, poultry, water)

35
Q

(T/F) Campylobacter hepaticus can be transmitted transovarially.

A

False

36
Q

(T/F) Campylobacter hepaticus is part of the normal flora in many animals.

A

True

Bacteriology II (22 decks)

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