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RUSVM Bacteriology > Final Exam - Pseudomonas to Rickettsia > Flashcards

Final Exam - Pseudomonas to Rickettsia Flashcards

1
Q

Describe the morphology of Pseudomonas

A

Gram negative rods, obligate aerobe (cat +/ Oxid -), motile rods, ubiquitous

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2
Q

what exotoxins does P. Aeuriginosa have? WHAT DO THEY DO?

A

T3SS,
Exotoxin A - inhibits prot synthesis
Exotoxin S & T - interferes with phagocytosis by affecting the actin cytoskeleton
Exotoxin U - cytotoxic effect
Exotoxin Y - increases intracellular CAMP to cytopathic levels

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3
Q

What bacteria causes kennel cough?

A

Bordetella bronchiseptica

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4
Q

What causes turkey coryza?

A

Bordetella avium

tracheobronchitis, sinusisits, conjunctivitis

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5
Q

What causes rabbit syphillis?

A

treponema paraluiscuniculi

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6
Q

What causes fowl Spirochetosis?

A

Borrelia answerina (chickens - greenish diarrhia)

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7
Q

Tularemia is caused by what?

A

Francissella tularensis

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8
Q

Tularemia is spread by what vector?

A

dermacenter and ambylomma

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9
Q

Tularemia is also known as what?

A

rabbit fever, deer fly fever, lemming fever?

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10
Q

Is Tularemia reportable?

A

Yes

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11
Q

Is lyme disease reportable?

A

only in humans, not in animals

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12
Q

Name the vector for lyme disease

A

ixodes scapularis, ixodes pacificus

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13
Q

Name the vector for Borellia Burgdorferi sensu loto

A

ixodes scapularis, ixodes pacificus (deer tick and western black leg tick), 2 year ticks!

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14
Q

What is Ixodes a vector for?

A

borellia burdorferi – lyme disease

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15
Q

Is chlamydia psittici reportable?

A

Yes

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16
Q

What bacteria causes infectious canine tracheobronchitis

A

Bordetella bronchiseptica

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17
Q

What organisms from Murphy’s review cause abortion?

A

brucella, campylobacter and chlamydia (and Rickettsia)

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18
Q

Does taylorella cause abortions?

A

No, but it does cause a failure to conceive

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19
Q

Reproductive and GI problems are associated with what genus of bacteria?

A

Camplylobacter

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20
Q

What two bacteria have cytolethal distending toxin?

A

helicobacter and campylobacter

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21
Q

What’s special about chlamydia?

A

Two phases – elementary body and reticulate body

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22
Q

What is the infective form of chlamydia? Is it metabolically active?

A

elementary body, metabolically inactive

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23
Q

How does chlamydia infect other cells once inside a host cell?

A

inside a cell it becomes metabolically active reticulate body, makes more elementary bodies to be released from host cell and infect other cells

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24
Q

What are important pathogen characteristics of helicobacter?

A

cytolethal distending toxin, lives in stomach, produces urease to make ammonia and neutralize stomach acid

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25
Q

A dog comes into your clinic with a nasty skin/ear infection. On a gram stain you see WBC’s and G- cocci. What org comes to mind?

A

staphylococcus

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26
Q

A dog comes into your clinic with a nasty skin/ear infection. On a gram stain you see WBC’s and G+ cocci. What org comes to mind?

A

streptococcus

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27
Q

A dog comes into your clinic with a nasty skin/ear infection. On a gram stain you see WBC’s and G- rods. What orgs come to mind?

A

pseudomonas, e. coli

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28
Q

What causes Glanders?

A

Burkholderia mallei

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29
Q

What causes pseudoglanders?

A

Burkholderia pseudomallei

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30
Q

What causes myleidosis

A

Burkholderia pseudomallei

31
Q

What causes Farcy?

A

Burkholderia mallei (cutaneous glanders)

32
Q

What causes Contagious Equine Metritis?

A

Taylorella equigenitalis

33
Q

What causes recurrent uveitis in horses?

A

leptospira interrogans

34
Q

What is the model organism for eye issues in cattle?

A

moraxella

35
Q

When Moraxella causes an infection in an eye what is it called?

A

Infectious Bovine Keratosis (IBK)

36
Q

mycoplasma felis infects what species?

A

cats and horses

37
Q

What causes human syphillis?

A

treponema pallidum

38
Q

What species of chlamydia is reportable?

A

chlasmydia psittici

39
Q

What species of chlamydia are zoonotic?

A

c. abortus, c. felis, c. pneumonia, c. psittici

40
Q

what’s the only hemotrophic mycoplasma we learned?

A

myocplasma haemophilus – all others are NON hemotrophic

41
Q

mycoplasma haemophilus causes hemolytic anemia in what species?

A

cats

42
Q

What is a clinical sign of swine dysentery?

A

bloody diarrhea

43
Q

What causes porcine proliferative enteritis?

A

Lawsonia intracellularis

44
Q

What is a clinical sign of porcine proliferative enteritis?

A

non-bloody diarrhea (‘garden hose’ duct)

45
Q

True or false: dermonecrotic toxin is produced by pasteurella?

A

false. produced by bordetella

46
Q

What are the five toxins of bordetella? What do they do?

A

1) Trachael cytotoxin - damages ciliated epithelial cell
2) dermonectrotic toxin - affects actin cytoskeleton, inhibits osteoblasts (atrophic rhinitis)
3) adenyl cyclase toxin - pore forming, rereg. ion and fluid flow, hemolytic, reduces phagocytic capacity of leukocytes
4) pertussis toxin (B. pertussis only) - loss of fluids and ions, inhibits phagocytes
5) osteotoxin - lethal to trachael and bone cells

47
Q

Where does brucella multiply in cells?

A

inside macrophages

48
Q

Is brucella reportable?

A

yes

49
Q

Is brucella zoonotic?

A

yes

50
Q

Does brucella cause abortion?

A

Yes, in cows, people, swine and dogs

51
Q

Is Brucella a problem in the US?

A

Yes because of wild pigs and animals (deer)

52
Q

T/F: Both Lawsonia and Chladmydia are intracellular?

A

TRUE

53
Q

Name reportable diseases (There are ____)

A

Burkholderia mallei

54
Q

What color is pseudomonas on MacConkey Agar?

A

colorless

55
Q

What causes pseudomonas to appear lime green?

A

blue pyocyanin (virulence factor) and yellow fleuroscin

56
Q

How can you distinguish Burkholderia pseudomallei from mallei?

A

pseudo is motile (and grows on cepacia agar?)

pseudo causes meliodosis and pseudoglanders

57
Q

how can you distinguish melioidosis from glanders?

A

glanders – horses and cats mainly
meliodosis mainly sheep and goats

glanders - B mallei (non motile)
meliodosis - B pseudomallei (motile)

58
Q

What causes whitemore’s dz in humans?

A

Burkholderia pseuodmallei “vietnamese time bomb”

59
Q

What causes CEM contagious equine metritis?

A

Taylorella equigenitalis

60
Q

What causes swine dysentery?

A

Brachyspira hyodysenteriae (growing pigs 6-12 weeks)

61
Q

Swine dysentery affects what age group of swine?

A

growing pigs, 6-12 weeks

62
Q

What causes proliferative enteropathy in pigs, horses, mammals and birds?

A

lawsonia intracellularis

63
Q

the leading cause of food-borne bacterial gastroenteritis in humans

A

C jejuni and C coli

64
Q

necrotic donut hole shaped lesions are pathognomonis for what?

A

ovine camplylobacter: c. jejuni or c. fetus ssp fetus

65
Q

What is found in 50% of the ceca of chickens?

A

Campylobacter jejuni

66
Q

how can you distinguish campylobacter from acrobacter?

A

campylobacter will not grow below 30 degrees C but arco will

67
Q

What causes “weak calf syndrome”

A

leptospira ser. hardio

68
Q

What is the tick vector for borellia anserina?

A

argas persicus (soft tick)

69
Q

what causes infectious sinusitis in turkeys?

A

mycoplasma gallisepticum

70
Q

what causes sternal bursitis in turkeys?

A

mycoplasma synovial

71
Q

what causes contagious bovine pleuropneumonia (CBPP)

A

mycoplasma mycoides ssp mycoides SMALL COLONY

72
Q

True or false: mycoplasma are normal commensal organisms of the lower urogenital tract?

A

true – dz usually in overcrowded/stressed animals

73
Q

What does mycoplasma mycoides ssp mycoides LARGE colony cause?

A

mastitits, pneumonia, septicemia in kids

RUSVM Bacteriology (3 decks)

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