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AA3 Bacteriology and Mycology > Lesson 6 Clostridium species > Flashcards

Lesson 6 Clostridium species Flashcards

1
Q

resistant to C. tetani

A

carnivores

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2
Q

endospores of C. tetani are killed by autoclaving in this temperature

A

121 degree celcius for 15 mins

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3
Q

hasten the the replication of the clostridial organisms in tissues

A

tetanolysin

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4
Q

responsible for the clinical signs of tetanus

A

tetanospamin

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5
Q

a condition of spasms of masticatory muscles may lead to

A

lockjaw

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6
Q

incubation period of tetanus

A

5 - 10 days

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7
Q

Non motile Clostridium specie

A

C. perfringens

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8
Q

Neurotoxic clostridia

A

C. tetani, C. botulinum

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9
Q

Atypical clostridial organism

A

C. piliforme

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10
Q

straight, slender, anaerobic, gram positive rod with spherical endospores giving drumstick appearance to sporulated organisms

A

Clostridium tetani

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11
Q

infective stage of Clostridium tetani

A

endospores

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12
Q

intoxication is through ingestion of pre-formed neurotoxin

A

Clostridium botulinum

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13
Q

spores of C. botulinum is introduced through injection of?

A

subcutaneous

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14
Q

they cause the most common outbreaks of botulism

A

Clostridium botulinum types C and D

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15
Q

they are resistance to neurotoxins of botulinum

A

pigs and dogs

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16
Q

gram positive bacteria with oval, subterminal endospores

A

C. botulinum

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17
Q

botulism is rare in?

A

domestic cats

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18
Q

effecive in neutralizing unbound toxin of botulinum in early course of disease

A

polyvalent antiserum

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19
Q

treat botulinum via enhance transmitter release at neuromuscular junctions

A

tetraethylamide, guanidine

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20
Q

causative agent of blackleg

A

Clostridium chauvoei

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21
Q

blackleg affects what age of cattle

A

3 months to 2 years old

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22
Q

blackleg in cattle produces what kind of infection

A

endogenous

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23
Q

blackleg in sheep occurs in any age and causes what infection

A

exogenous infection

24
Q

Clostridium septicum produces this condition

A

malignant edema

25
Q

C. perfringens type A most likely cause this condition

A

gas gangrene

26
Q

manifested by edematous swelling of subcutaneous tissues of the head, neck, and cranial thorax

A

big head, caused by clostridial infection

27
Q

cause of deah is due to gangrenous cellulitis and myositis, myocardial and diaphragmatic lesions

A

blackleg

28
Q

braxy is caused by exotoxins occuring in winter preiods

A

Clostridium septicum

29
Q

black disease or dark discolorationof the skin observed at post-mortem examination

A

infectious necrotic hepatitis

30
Q

black disease causative agent

A

Clostridium novyi type B

31
Q

causative agent of bacillary haemoglobinuria

A

C. haemolyticum

32
Q

major clinical feature of disease caused by C. haemolyticum

A

haemoglobinuria

33
Q

technique used to demonstrate C. novyi type B in specimens from liver lesions

A

fluorescent antibody technique

34
Q

phospholipase produced by vegetative cells of C. haemolyticum, causes intravascular haemolysis in addition to hepatic necrosis

A

alpha toxin

35
Q

causative agent of lamb dysentery

A

C. perfringens type B

36
Q

sensitive to trypsin digestion

A

beta toxin of C. perfringens type B

37
Q

disease caused by C. chauvoei

A

blackleg in cattle and sheep

38
Q

diseases caused by C. septicum

A

malignant edema in cattle, sheep, pigs; abomasitis in sheep

39
Q

disease caused by C. novyi type A

A

big head in young rams

40
Q

disease caused by C. haemolyticum

A

Bacillary haemoglobinuria

41
Q

disease caused by c. novyi type B

A

infectious necrotic hepatitis

42
Q

diseases caused by C. sordelii

A

myositis and abomasitis

43
Q

causes gangrenous dermatitis in chickens

A

Clostridim perfringens Type A

44
Q

toxin by C. perfringens type B which is sensitive to trypsin digestion

A

beta toxin of C. perfringens type B

45
Q

cause hemorrhagic enteritis in calves and enteritis in rabbits

A

C. perfringens type E

46
Q

cause pulpy kidney in sheep and enterotoxemia

A

C. perfringens type D

47
Q

disease caused by C. perfringens type C

A

struck in adult sheep, death, necrotic enteritis, hemorrhagic enteritis in neonates

48
Q

predisposing factor includes overeating of high grain diet, high starch content

A

Pulpy kidney disease

49
Q

occurs in sheep at pasture, manifest as sudden death sometimes with terminal convulsions

A

struck

50
Q

important virulence factor of necrotic enteritis strains

A

NetB

51
Q

reported in dogs and newborn foals resulting to chronic diarrhea and hemorrhagic enterocolitis, respectively

A

Clostridium difficile

52
Q

cause enteritis in quails, turkeys, chickens, pheasants, grouse with 100 percent mortality in quails

A

Clostridium colinum

53
Q

predisposing factor includes oral administration of antibiotics and low fiber diets

A

Clostridium spiroforme

54
Q

infection with clostridium piliforme

A

tyzzers disease

55
Q

technique used for tyzzers disease

A

Warthin starry silver impregntion technique

AA3 Bacteriology and Mycology (13 decks)

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