Bacteria 5

Question 1

Opportunist pathogens

Answer 1

do not cause disease in a healthy host, with a healthy immune system

Question 2

True Pathogens

Answer 2

are equipped with virulence genes for adherence, invasion, evasion from the immune system and toxins

Question 3

Nosocomial infections

Answer 3

hospital acquired infections

Staphylococcus aureus, Clostridium difficile

Question 4

Obligate intracellular pathogen

Answer 4

need a cell to replicate.

Rickettsia

Question 5

Facultative intracellular pathogen

Answer 5

can survive in extracellular and intracelluar locations

Mycobacteria

Question 6

Mycoplasma

Answer 6

Cell wall deficient, bacteria do not have peptidoglycan.

Question 7

Mycobacteria

Answer 7

have mycolic acid, and will stain postive for acid fast staining

Question 8

Staphylococcus

Answer 8

skin and mucus membranes. pyogenic bacterial. abscesses and infections.

Question 9

S. hyicus

Answer 9

Greasy Pig disease- staphylococcus

Question 10

how to test for Staphylococcus

Answer 10

coagulase test, and SPA

check for enterotoxin A-E

Question 11

MRSA

Answer 11

Nosocomial infection, methicillin resistant S. aureus

Question 12

Streptococcus

Answer 12

have a capsule to help evade phagocytosis

Question 13

S. pyogenes

Answer 13

Strept- humans

Question 14

S. agalactiae & S. dysgalactiae

Answer 14

Mastitis

Question 15

S. equi subsp. equi

Answer 15

Strangles in horses

Question 16

Bacillus Anthracis

Answer 16

Gram Postive (Violet)
three toxins present
Anti-phagocytic
polymer of D-Glutamic acid

Question 17

3 (tripartite toxin) proteins encoded in the plasmid for Anthrax

Answer 17

Edema Factor- calmoduline,inhibit neutrophil function
Lethal Factor- zinc, cell death
Protective Antigen-cell binding factor

Question 18

Erysipelothrix Rhusiopathiae

Answer 18

Swine erysipelas

Diamond skin disease in swine

Question 19

Corynebacterium pseudotuberculosis

Answer 19

Caseous lymphadenitis

Absess in lymph nodes. (goats)

Question 20

Actinomyces Bovis

Answer 20

Lumpy jaw in cattle.

pyogranulomatous osteomyelitis

Question 21

mycobacterium tuberculosis complex

Answer 21

Acid Fast Positive, mycolic acid.

Facultative intracellular bacteria. humans and cows

Question 22

Johne’s Disease

Answer 22

M. avium. subsp paratuberculosis

Thick intestines, cannot absorb nutrients and become malnourished.

Question 23

Listeria Monocytogenes

Answer 23

septicemia, abortion, meningoencephalitis
Facultatice intracellular bacterium
food borne,
use host actin filaments to travel in the cell

Question 24

Clostridium

Answer 24

histotoxic, invasive. 6 types

Question 25

Clostridium Tetani

Answer 25

infects surgical wounds, causes spastic paraylsis. Lock Jaw

Question 26

Clostridium botulinum

Answer 26

Produce botulinum toxin, and causes flaccid paralysis. Intoxication with BoNT

Question 27

Examples of Gram Negative Bacteria

Answer 27

Group Enterobacteriaceae-present in water, soil, and GI tract Coliform Bacteria- E.coli, Klebsiella,Enterobacter. (coliform enumeration is used to evaluate fecal contamination in drinking water)

Question 28

Escherichia coli

Answer 28

Neonatal Colisepticemia in calves edema disease in pigs hemorrhagic enteritis in humans hemolystic uremic syndrome and kidney failure O157H7

Question 29

Salmonella enterica

Answer 29

gastroenteritis and systemic diseases dublin- cattle typhi- humans enteritidis- chickens

Question 30

Actinobacillus pleuropneumoniae

Answer 30

Fibrinonecrotic pneumonia in pigs

Question 31

Pasteurella Multocida and Mannheimmia hemolytica

Answer 31

Shipping Fever pneumonia in cattle

Question 32

Brucellosis

Answer 32

Abortus, melitensis, suis. canis. | reproductive system and general illness, survive in macrophages, zoonotic disease

Question 33

Bordetella Bronchiseptica

Answer 33

Kennel Cough in dogs | Atrophic Rhinitis in swine

Question 34

Leptospirosis

Answer 34

Spirochete (endoflagella) bacteria live in the kidney tubules. widespread zoonotic disease

Question 35

Borelia Burgdorferi

Answer 35

Spirochete, causes lyme disease. Tick Vector

Question 36

Mollicutes- Mycoplasma

Answer 36

in humans- walking pneumonia in cattle- pneumonia and arthritis. no cell wall- no peptidoglycan no gram staning and not susceptaible to penicillin Fried Egg colony- smallest prokaryotic cells about to self replicate.

Question 37

Rickettsiales

Answer 37

Obligate Intracellular bacteria. Transmittec though Ticks | also Anaplasma, and Ehrlichia