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Flashcards in Bacteriology Final Exam Material Deck (111)
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1

What is the most common clinical sign of Brucella melitensis infection?

Abortion

1

T/F: Arcobacter spp. will grow on MacConkey Agar at 37°C

True

1

T/F: Contagious bovine pleuropneumonia (CBPP), caused by Mycoplasma mycoides ssp. mycoides (large colony variant), is reportable in the USA 

False

Contagious bovine pleuropneumonia (CBPP), caused by Mycoplasma mycoides ssp. mycoides (small colony variant), is reportable in the USA

Yes, that was a dick move, but it's an important distinction

2

Syphilis in humans is caused by which bacterial organism?

Treponema pallidum 

3

What is the most virulent Mycoplasma in cattle?

Mycoplasma mycoides ssp. mycoides 

Causes contagious bovine pleuropneumonia (CBPP)

3

Which species of Mycoplasma do we commonly see in cats? 

Mycoplasma felis

4

Which bacterial organism is responsible for Contagious agalactia of sheep and goats?

Mycoplasma agalactiae and Mycoplasma putrefaciens

4

Which bacterial organism is responsible for Lyme Disease?

Borellia burgdorferi

**Transmitted by Ixodes ticks (usually Ixodes scapularis)

4

Name the bacteria responsible for Johne's Disease

(Cattle: Chronic wasting disease, normal appetite and temperature)

Mycobacterium avium subspecies paratuberculosis

5

Which bacterial organism is responsible for Feline Infectious Anemia?

Mycoplasma haemofelis 

Mycoplasma haemofelis is a hemotrophic mollicute; red blood cell parasite

5

A pig (named Chris P. Bacon) presents to your clinic in severe respiratory distress... You kill him. Upon necropsy, you observe focal areas of necrotizing pneumonia in the dorsal and caudal portions of the lungs. Which bacterial organism should you have at the top of your differential list?

Actinobacillus pleuropneumoniae 

6

Which two factors are necessary for the virulence of Moraxella bovis in causing Infectious Bovine Keratoconjunctivitis (IBK)?

Cytotoxin and fimbriae 

6

Atrophic Rhinitis in swine is mostly attributable to which toxin?

Dermonecrotic toxin

6

African Heartwater is caused by which bacterial organism?

Ehrlichia ruminantium 

**Reportable disease**

Tick vector is Amblyomma spp.

7

Canine Infectious Tracheobronchitis is also known as ____________ and is caused by which bacterial organism (primarily)?

Canine Infectious Tracheobronchitis is also known as kennel cough and is caused (primarily) by Bordetella bronchiseptica

It may also be caused by canine parainfluenza virus, canine adenovirus 1 & 2, canine herpesvirus, Canine distemper, Mycoplasma spp., and Reoviruses 1, 2, & 3.

But remembering all that sucks, so whatever

8

What is the most important bacterial organism involved with Mycoplasma mastitis?

Mycoplasma bovis

9

This vegetative endocarditis of the right atrioventricular valve of a heifer was caused by which bacterial organism?

Erysipelothrix rhusiopathiae

9

Yersinia stable toxin (Yst) is unique to which spp of Yersinia?

Yersinia enterocolitica

10

Is it typical to see bloody diarrhea associated with Lawsonia intracellularis?

No, not usually

 

11

The acute form of African Heartwater is characterized by fever, followed by:

neurological signs

11

Regarding Bordetella, which exotoxin affects actin cytoskeleton of affected cells?

Dermonecrotic toxin

12

Which is more common after infection by Francisella tularensis

Ulceroglandular tularemia or oculoglandular tularemia?

Ulceroglandular tularemia is the most common (~80% of cases)

12

Skin abscesses in horses associated with Glanders are referred to as:

Farcy

12

Which organism should be on the top of your differential list for shipping fever?

Mannhaemia haemolytica

13

T/F: Burkholderia mallei are motile by flagella

False

Burkholderia pseudomallei are motile by flagella. This is a differentiating characteristic from the non-motile B. mallei

13

Infectious Bovine Keratoconjunctivitis (IBK) is caused by which bacterial organism?

Moraxella bovis

14

What is the reservoir for Leptospira spp?

Tubules of mammalian kidneys (especially rodents!)

15

Which bacterial organism is responsible for Swine Dysentery?

Brachyspira hyodysenteriae

B. hyodysenteriae affects actively growing pigs (6-12 weeks old)

16

Which bacterial organism exhibits beta-hemolysis (ring phenomenon) on blood agar?

Brachyspira spp.

When you see a colony and you pick the colony out from that area and re-incubate that plate, the beta hemolysis will expand even more. This is characteristic of this organism

17

Which organism is responsible for Rocky Mountain Spotted Fever?

Rickettsia rickettsii