Campylobacter (Exam 4) Flashcards
Campylobacter is a gram (negative/positive), curved _______.
negative
rod
(T/F) Campylobacter is Cytochrome C oxidase positive.
True
(T/F) Campylobacter utilizes carbohydrates.
False
In terms of oxygen requirement, Campylobacter is __________ to _________.
microaerophilic
anaerobic
(T/F) Campylobacter is hemolytic.
False (non-hemolytic)
(T/F) Campylobacter is zoonotic.
True
(T/F) Campylobacter uses siderophores to steal iron from the host.
False (rely on other organisms)
Campylobacter _______ is an obligate parasite which infects ruminants.
fetus
Within Campylobacter fetus, which subspecies causes Bovine Genital Campylobacteriosis?
C. fetus subspecies venerealis
The main cause of infertility in cattle in the US:
C. fetus subspecies venerealis
What 2 clinical signs occur with cattle infected with C. fetus subspecies veneralis?
infertility
abortion
Bulls with Bovine Genital Campylobacteriosis have libido loss, weight loss, but NO ________ or ________.
infertility
acquired immunity
Bovine Genital Campylobacteriosis is difficult to detect in (old/young) bulls, while the other are easily infected and become carriers.
young
How is Bovine Genital Campylobacteriosis transmitted?
venereal (natural or AI)
The main infection site for C. fetus subspecies venerealis in females is ______ while males it is _______.
uterus
prepuce
_____ & ____ antibodies immobilize bacteria and prevent adherence during Bovine Genital Campylobacteriosis infection.
IgG
IgA
______ is the major protective antibody in the cervix and vagina with Bovine Genital Campylobacteriosis infection.
IgA
________ tests or culture are the two main ways to diagnose Bovine Genital Campylobacteriosis.
immunological
Which species & subspecies of Campylobacter causes Ovine Epizootic Abortion?
C. fetus subspecies fetus
What is unique about C. fetus subspecies fetus that makes it anti-phagocytic and allows for antigenic variation?
produces S-layer
(T/F) C. fetus subspecies fetus is part of the normal flora of sheep.
False (cattle)
What is the major clinical sign in Ovine Epizootic Abortion?
abortion
(T/F) Abortion occurs without prior clinical signs in Ovine Epizootic Abortion.
True
How is C. fetus subspecies fetus transmitted?
fecal-oral (ingestion)
NOT venereal!
Which type of secretion system does Campylobacter jejuni subsp. jejuni use that resembles a phage or virus infecting DNA into the host cell?
Type VI (6)
Which species are affected by C. jejuni subsp. jejuni? (4)
sheep
dogs
cats
humans
(T/F) C. jejuni subspecies jejuni is part of normal GI flora.
True
(T/F) C. jejuni subspecies jejuni is zoonotic so humans can get it from their pets.
True
What clinical sign in seen in dogs and cats infected with C. jejuni subsp. jejuni? Sheep?
dogs/cats: enteritis (diarrhea)
sheep: abortion
Humans secondarily infected with Campylobacter jejuni subsp. jejuni develop what problem?
food poisoning
In terms of C. jejuni subspecies jejuni, a presumptive diagnosis can be made via ______ or ______ microscopy while culture is used as a definitive diagnosis.
darkfield or phase
Which Campylobacter is a fastidious, microaerophilic thermophile affecting poultry?
C. hepaticus
What disease does Campylobacter hepaticus cause in poultry?
Spotty Liver Disease
How is Spotty Liver Disease transmitted?
fecal-oral (raw milk, poultry, water)
(T/F) Campylobacter hepaticus can be transmitted transovarially.
False
(T/F) Campylobacter hepaticus is part of the normal flora in many animals.
True
