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Flashcards in export_bact test 6 Deck (189):
1

d

e

2

Fusobacteriumnecrophroum

Usual cause of hepatic abscesses in feedlot cattle

3

Clostridium perfringens Type A, Clostridiums perfringens type CClostridium difficile

According to the required reading, what are the 3 most common clostridium involved in diarrhea diseases in baby pigs

4

Porphyromonas, Prevoteilla

2 genera that contain most of the species of Black-pigmented obligately anaerobic bacteria

5

Clostridium botulinum type C

You are a wildlife vet in oregon. You are studying the cause of death of 1000 ducks in some shallow ponds in a wildlife refuge. The major symptom you saw was a flaccid paralysis w/o recovery in the birds. One bacteria known to cause this type of disease is?

6

Clostridium tetani

This agent causes a toxin that will cause a generalized rigid spastic paralysis of skeletal muscle in affected dogs

7

Clostridium haemolyticum

Fever, anemia, hemoglobinuria were observed in 4 cows from a herd of 50 Holstein cows in Wisconsin. Lesions(one cow died) of anemia and a large liver infarct were seen at necropsy. Large gram positive sporeforming rods were isolated from liver on anaerobic culture

8

Clostridium botulinum Type C

This agent produces a toxin that causes a generalized flaccid paralysis in ducks and other avian species when ingested from environmental sources

9

Clostridium perfringens Type D

This gram positive obligately anaerobic sporeforming bacteria is the cause of one type of bovine enterotoxemia in feedlot cattle that usually results in sudden death. In the live animal, it is characterized by symptoms of CNS disease

10

Clostridium novyi

The cause of infectious necrotic hepatitis in cattle

11

Clostridium piliforme

Animal: 3 wk old foal in MO
Symptoms: Foal died suddenly

Lesions: Multiple foci of hepatic necrosis were seen

Lab: No growth on aerobic blood agar

Histo: Large filamenious bacteria arranged in parallel fashion in hepatocytes were seen on a silver stain of a liver lesion

12

Clostridium perfringens Type A

Bacteria commonly associated w/ canine hemorrhagic gastroenteritis

13

Clostridium Perfringens Type C

This agent produces a toxin that causes a necrosis of intestinal epithelium in neonatal foals

14

Clostridium piliforme

Considered to be the cause of Tyzzer's disease in mice

15

Clostridium botulinum Type B

Animal: well-nourished 3 week old foal in KY
Syptoms: Generalized flacid paralysis of major skeletal muscele masses

Foal rfails to respond to stimuli

Lesions: gastric ulcers were observed

16

Clostridium perfringens type C

Animals: two neonatal calves
Symptoms and lesions> sudden death, small intestine had signs of a necrotic bloody enteritis

Lab: large gram positive rods observed in direct smear

17

Bacillus anthracis

Animals: Group of 50 yearling cattle in Tx
Symptoms: sudden death in 2 animals

Necropsy: blood didn't clot, spleen is enlarged

Lab: Large sporeforming gram positive rod grew on primary aerobic culture

18

Clostridium perfringens Type A

Animal: 3 yr old Beagle in Columbia
Symptoms: Dog is in acute shock and has a bloody diarrhea

Lab: Direct smear of bloody feces, large gram positive rods on majority population

19

Fusobacteriumnecrophorum
and

Porphyromonas levii

These 2 species of bacteria act as synergistic agents in pathogenesis of acute foot rot

20

Bacillus anthracis

This agent is the cause of anthrax in hores

21

Clostridium chauvoei

Animal: Yearling well-nourished steer in Missouri
Symptoms: sudden death

Lesions: Gas bubbles under skin of left hidnd leg, large dry dark area in muscle of the leg

Your diagnosis: Blackleg

22

Clostridium difficile

This species of gram positive sporeforming rod was originally associated w/ antibiotic induced overgrowth digestive tract disease in humans. Subsequently it was identified as a cause of the same type of disease in lab animals and has recently ibeen identifed as a cause of a severe hemorrhagic necrotizing enterocolitis in neonatal foals

23

Bacillus anthracis
Clostridium botulinum type A

Two bacteria from 2 different genera that are considered by the CDC to be class A bioterrorism agents

24

Fusobacteriumnecrophorum

Animals: herd of 200 dairy cows in MO
Symptoms: chronic lameness in about 50 of the cows w/ involvement of 2-4 feet

Lesions: interdigital necrosis and chronic destruction of the bulbs of the feet

Diagnosis?

25

Propionibacterium acnes

This agent is commonly used in products sold as immunomodulators

26

Binary fission

Term that would describe the method of reproduction of Bacillus anthracis

27

Dipicolinic acid

Compound found in the core of endospores that may be responsible for its environmental resistance

28

Septate hyphae

The type of hyphae that are characteristic of the Deutoromycetes

29

Catalase
Superoxide dismutase

These 2 enzymes produced by certain bacteria protect them from toxic oxygen containing compounds produced when oxygen is the terminal electron acceptor in energy metabolism

30

Gingivitis

Inflammation of the gum tissue of the mouth

31

Deutoromycetes

This form class contains most of the fungi pathogenic to animals

32

Obligately anaerobic bacteria

How would Clostridium perfringens be classified in regards to utilization of oxygen in their environment?

33

Gangliosides

These gylcosphingolipids are components of the cell plasma membrane which modulate cell signal transduction events

34

Cytochrome systema

These proteins are important in electron transport in the presence of oxygen

35

Myositis

Inflammation of the muscles

36

Endemic

Term referring to a persistence of infection or disease in an animal population at a more or less constant low level

37

Reducing agents

These compounds are used to remove oxygen from media

38

Eh

Term that is used to express oxidation reduction potentials

39

Chitin

This compound is a structural component of the cell wall of fungi but not of bacteria

40

Embden Meyerhoff pathway

This biochemical pathway is responsible for anaerobic glycolysis of glucose

41

Anoxia

If an animal died due to a lack of oxygen in his system, we would say this animal died of?

42

Prebiotics

Complex carbs that are given to stimulate the growth and/or activity of bacteria in the digestive system which are beneficial to the health of the body

43

Prebiotics

Complex carbs tat are given to stimulate the growth and or activity of bacteria in the digestive system which are beneficial to the health of the body

44

Crepitation

A crunching crackling sensation that is felt w/ gas production by bacteria in tissues

45

Pyogenic

Bacterial infections that are characterized by pus formation and abscesses

46

Endotoxin

When a label on an injectable vial states that the contents are pyrogen free it means that the contents do not contain?

47

Ergosterol

This compound is in the plasmalemma but not in mammalian cell structures

48

Conjugation

The name for the process which refers to the transfer of genetic elements b/t bacteria that is mediated by bacterial pili

49

Krebs cycle

This biochemical pathway is the major energy producing pathway in facultatively anaerobic bacteria but is not present in obiligately anaerobic bacteria

50

Liver

What organ serves as the principal site of infection for Clostridium haemolyticum infection in cattle?

51

Liver

What is the organ that serves as the principal site of infection for Clostridium piliforme infection in mice?

52

SI

What is the organ that serves as the principal site of infection for neonatal enterotoxemia in pigs?

53

LI

What is the organ that serves as the principal site of infection of clostridium difficile infections in humans?

54

Commercial toxoid

You have an owner who wishes to prevent necrotic abomasitis in his calves

55

Commercial antitoxin

You have just castrated a horse w/ an unknown vaccination history. You wish to prevent tetanus

56

Commercial bacterin or whole culture bacterin

You have an owner who wishes to prevent periodontal disease in his dogs

57

Commercial toxoid

You have an owner who wishes to prevent toxicoinfectious botulism in his horses

58

Commercial toxoid

You wish to vaccinate a horse for long term prevention of tetanus

59

Commercial Modified or avirulent live vaccine

You have horses that you want to vaccinate to prevent anthrax

60

Commercial bacterin or whole culture bacterin

You have an owner who wishes prevent blackleg in his feedlot steers

61

Commercial bacterin toxoid combo

You have an onwer who wishes to vaccinate his cows to prevent neonatal enterotoxemia in his calves

62

Jugular blood sample

The best tissue for bacteriolgocialcultureto send to a diagnostic lab from an 800 lb dead steer that you suspect has anthrax would be?

63

Demonstrationof bacteria on histopathology

Which of the following would be the most important procedure in the routine confirmation of a diagnosis of Tyzzer's disease in a foal

64

Bacteriocidal and time dependent

Cephalosporins in regards to use in the patient and action on the bacteria are?

65

Cell wall synthesis

Cephalosporins in regards to site of action in the bacteria affects?

66

Gram negative non-sporeforming anaerobic rod

A description of Bacteroides fragilis would be?

67

Growth stimulant

Carbon dioxide

68

Catalyst

Palladium

69

Chemical indicator of Eh

Resazurin

70

Reducing agent

sodium Thioglycoliate

71

Endotoxins

The inciting lesions allowing bacterial overgrowth in canine hemorrhagic gastroenteritis are probably due to this toxin

72

Lethal factor

A major toxin of Bacillus anthracis

73

Epsilon toxins

Major toxin produced by Clostridium perfringens Type D

74

Beta toxins

Major toxin produced by Clostridium perfringens type C

75

Metronidazole

Drug of choice to treat a Clostridium difficile inefection in a horse

76

Amoxicillin

Drug of choice for treatment of acute foot rot in dairy cattle

77

Gentamicin

This drug has long term residues in the kidneys of cattle such that vets recommend that the drug not be used to treat feedlot cattle even though it can be legally used for treatment

78

Amoxicillin

Drug of choice for treatment of clostridial myositis in a horse

79

Enrofloxacin and Gentamicin

2 antimicrobialswhich are commonly used to treat bacterial infections but which are unlikely to wwork against anaerobic bacteria

80

Amoxicillin

Drug of choice for treatment of Anthrax in a dog

81

Tilmicosin

This macrolide drug used to treat cattle and swine is known for having significant toxicity on accidental injection in humans

82

Amoxicillin

Clavulanic acid is used as a potentiator in combo w/ this drug

83

Antimicrobialsdont work/fit the given description

Drug of choice for treatment of Tyzzer's disease in a horse

84

Clostridium chauvoei

Animal: Yearling well-nourished steer in Missouri
Symptoms: Sudden death

Lesions: Gas bubbles under skin of left hind leg, large dry dark area in muscle of the leg.

Your diagnosis: Blackleg

85

Clostridium novyi

Cause of infectious necrotic hepatitis in cattle

86

Clostridium tetani

Animal: 3 yr old QH
Symptoms: Uncontrolled paraoxysomal spasms of major muscle masses brought on by a randomstimulus leading to a temporary rigid paralysis

87

Clostridium botulinum Type B

Cause of Toxicoinfectious botulism in horses

88

Clostridium perfringens Type C

This agent produces a toxin that causes a necrosis of intestinal epithelium in neonatal foals

89

Clostridium piliforme

Considered to be the cause of Tyzzer's disease in horses

90

Clostridium botulinum Type B

Cause of toxicoinfectious botulism in horses

91

Clostridium perfringens type C

This agent produces a toxin that causes a necrosis of intestinal epithelium in neonatal foals

92

Clostridium piliforme

Considered to be the cause of Tyzzer's disease in horses

93

Clostridium botulinum Type B

Animal: Well nourished 3 week old foal in KY
Symptoms: Generalized flaccid paralysis of major skeletal muscle masses

Foal fails to respond to stimuli

Lesions: Gastric ulcers were observed

94

Clostridium botulinum Type C

This agent produces a toxin that causes a generalized flaccid paralysis in ducks and other avian species when ingested from environmental sources

95

Clostridium Botulinum Type C

This agent produces a toxin that causes a generalized flaccid paralysis in ducks and other avian species when ingested from environmental sources

96

Clostridium Perfringens type C

This agent produces a toxin that causes a necrosis of intestinal epithelium in neonatal foals

97

Clostridium perfringens type A

Bacteria commonly associated w/ canine hemorrhagic gastroenteritis

98

Clostridium tetani

This agent produces a toxin that will cause a generalized rigid spastic paralysis of skeletal muscle in affected dogs

99

Porphyomonasdenticanis
Porphyromonas gulae

Porphyromonas salivosa

These 3 agents are considered to be important in periodontal disease in dogs and are included in bacterin to prevent this disease

100

Clostridium perfringens type C

Animals: group of neonatal pigs
Symptoms: sudden death, SI shows signs of a necrotic bloody enteritis

Lab: Large gram positive rods observed in direct smear

101

Fusobacteriumnecrophorum

Usual cause of hepatic abscesses in feedlot cattle

102

Clostridium botulinum Type C

You are a wildlife vet in the northwest. You are studying the cause of death of 3000 birds in some shallow ponds near watercourses. The major symptom you saw was a flaccid paralysis w/o recovery in the birds. One bacterium known to cause this type of disease in the NW is?

103

Clostridium perfringens type D

This gram positive anaerobic sporeforming bacteria is the cause of the type of bovine enterotoxemia, characterized by sudden death, or if the animal lives it is characterized by symptoms of CNS disease

104

Clostridium perfringens Type A

Animal: 2 year old german shepherd in KC
Symptoms: Bloody diarrhea, acute shock

Lab:

Lab: direct smear of bloody feces, large gram positive rods are majority poplation

105

Fusobacteriumnecrophorum
Dichelobacter nodosus

Animal: flock of 100 sheep in MO
Symptoms: Chronic lameness in about 50 of the sheep in 204 feet on each sheep

Lesion: Interdigital necrosis, chronic destruction of the bulbs and overgrowth of horn in many nanimals

Diagnosis: contagious digital epidermatitis/chronic foot rot

(2 agents)

106

Propionibacterium acnes

This agent is commonly used in products sold as immunomodulators

107

Fusobacteriumnecrophorum
Porphyromonas levii

These 2 species of bacteria act as synergistic agents in pathogenesis of acute foot rot in cattle

108

Bacillus anthracis
Clostridium botulinum

These 2 bacteria from 2 different genera are considered by the CDC to be Class A bioterrorism agents

109

Bacillus
Clostridum

2 gernea of gram positive spreforming bacteria

110

Binary fission

Term used to describe the method of repro of Clostridium perfringens

111

Eh

Term that is used to express oxidation reduction potentials

112

Conjugation

Name for the process which refers to the transfer of genetic elements b/t bacteria that is mediated by bacterial pili

113

Ergosterol

This compound in the plasmalemma but not in mammalian cell structures

114

Sepsis

A systemic inflammatory response resulting in a severe toxic febrile state due to infection w/ pyogenic bacteria w/ or w/o an associated septicemia

115

Bacteria

In classification, to which domain do the bacteria belong?

116

Endotoxin

When a label on an injectable vial states that the contents are pyrogen free it means that the contents do not contain?

117

Periodic-Acid-Schiff stain

You have submitted a tissue specimen to a diagnostic lab. You request that they stain a histopathologic slide specifically for the cell wall of fungi. They would probably use this stain

118

Crepitation

A crunching crackling sensation that is felt w/ gas production by bacteria in tissues

119

Reducing agents

These compounds are used to remove oxygen from media

120

Toxoids

Product containing specific inactivated exotoxins and used for immunization of animals against these exotoxins

121

Gangliosidosis

These glycosphingolipids are components of the cell wplasma membrane which modulate cell signal transduction events

122

Dipicolonic acid

Compound found in the core of endospores that mayb be responsible for its environmental reseistance

123

Obligately anaeerobic bacteria

How would clostridium pefringens be classified in regards to utilization of oxygen in their environment?

124

Endemic

Term referring to a persistence of infection or disease in an animal population at a more or less constant low level

125

Catalase
Superoxide dismutase

These 2 enzymes produced by certain bacteria protect them from toxic oxygen containing compounds produced when oxygen is the terminal electorn acceptor in energy metabolism

126

Amoxicillin

Drug of choice for treatment of clostridial myositis in adog

127

Sulfadiazine

Trimethoprim is used as a potentiator in combo w/ this drug

128

Amoxicillin

Clavulanic acid is used as a potentiattor in combo w/ this drug

129

Amoxicillin

Drug of choice for treatment of blackleg in cattle

130

Antimicrobialsdo not work/ fit in the described condition

Drug of choice for treatment of Tyzzers disease in a horse

131

ofulvin

This agent should not be used in pregnant queens because it may cause teratogenic effects

132

Amoxicillin

Drug of choice for treatment of anthrax in a horse

133

Enrofloxacin

This agent must be used w/ caution in cats because use above 5 mg/kg can cause retinal degeneration

134

Enrofloxacin
Gentamicin

2 antimicrobialswhich are commonly used to treat bacterial infections but which are unlikely to work against anaerobic bacteria

135

Commercial toxoid

You wish to vaccinate a horse for long term prevention of tetanus

136

Commercial bacterin or whole culture bacterin

You have an owner who wishes to prevent Bacillary Hemoglobinuria in his cattle

137

Commercial bacterin or whole culture bacterin

You have just castrate a horse w/ an unknown vaccination history. You wish to prevent tetanus

138

Commercial bacterin or whole culture bacterin

You have an owner who wishes to prevent periodontal disease in his dogs

139

Commercial toxoid

You have an owner who wishes to prevent toxicoinfectious botulism in his horses

140

Commercial modified or avirulent live vaccine

You have cattle that you want to vaccinate to prevent anthrax

141

Commercial bacterin toxoid combination

You have an owner who wishes to vaccinate his sows to prevent neonatal enterotoxemia

142

SI

What is the organ that serves sat the principal site of infection w/ neonatla enterotoxemia in pigs?

143

Liver

What is the organ that serves as the principal site of infection w/ Clostridium piliforme infection in mice?

144

LI

What is the organ that serves as the principal site of infection w/ Clostridium difficile infections inhumans

145

Liver

What is the organ that serves as the principal site of infection w/ clostridium hemolyticum infection in cattle?

146

Reducing agent

Soidum thioglycollate

147

Chemical indicator of Eh

Resazurin

148

Reducing agent

Hydrogen

149

Catalyst

Palladium

150

Demo of bacteria on histopath

Which of the following would be the most important procedure in the routine confirmation of a diagnosis of Tyzzer's disease in a foal?

151

Liver

Endotoxin is possibly one major etiologic factor in canine hemorrhagic gastroenteritis. The major organ affected by the endotoxin resultin in the symptoms of HGE is?

152

Gram negative non-sporeforming anaerobic rod

A description of Bacteroides fragilis would be?

153

Protective antigen

What fraction of the exotoxin Bacillus anthracis is necessary for the activity of the other 2 fractions?

154

Major infection followed by intoxication

How would you classify disease caused by clostridium tetani?

155

Alpha toxins

Major toxin produced by all strains of Clostridium perfringens Type A

156

Lethal factor

A major toxin of Bacillus anthracis

157

Epsilon toxins

Major toxin produced by Clostridium perfringens type D

158

Toxins A and B

Major toxin produced by clostridium difficile

159

Iota toxins

The inciting lesions allowing bacterial overgrowth in Canine Hemorrhagic Gastroenteritis are probably due to this toxin

160

Commercial toxoid

You wish to vaccinate a horse for long-term prevention of tetanus

161

Commercial toxoid

You have an owner who wishes to prevent toxicoinfectious botulism in his horses

162

Commercial antitoxin

You have just castrated a horse w/ an unknown vaccination history. You wish to prevent tetanus

163

Commercial bacterin or whole culture bacterin

You have an onwer who wishes to prevent blackleg in his feedlot steers

164

Commercial modified or avirulent live vaccine

You have horses that you want to vaccinate to prevent Anthrax

165

Gram positive sporeforming aerobic rod

A description of Bacillus anthracis would be?

166

Jugular blood sample

The best tissue for bacteriologicalcultureto send to a diagnostic lab from an 800 lb dead steer that you suspect has anthrax would be?

167

Liver

In clostridium haemolyticum infections in cattle the major site of infection is?

168

Liver

What is the principal site of infection w/ clostridium piliforme in animals?

169

Bacteriocidal and time dependent

Imipenem in regards to use in the patient and action on the bacteria is?

170

Robert Koch

Who identified the causative agent of anthrax?

171

Intoxication w/o major infection

How would you classify disease caused by clostridium botulinum?

172

Bacteriostatic and time dependent

Chloramphenicol in regards to use in the patient and action on the bacteria?

173

Process of translation

Chloramphenicol, in regards to site of action in the bacteria affects?

174

Demonstrationof bacteria on histopathology

Which of the following would be the most important procedure in the routine confirmation of a diagnosis of Tyzzer's disease in a foal?

175

Process of translation

Gentamicin in regards to site of action in the bacteria affects?

176

Bacteriocidal and concentration dependent

Gentamicin in regards to use in the patient and action on the bacteria is?

177

Liver

A certain toxin is one major etiologic factor often involved in canine hemorrhagic gastroenteritis. The organ directly affected by the toxin resulting in the symptoms of HGE is?

178

Gram negative non-sporeforming anaerobic rod

A description of Bacteroides fragilis would be?

179

Increased permeability

The major mechanism in diarrhea due to Clostridium perfringens Type C infection in a neonatal calf is probably?

180

Vancomycin

This drug belongs to the glycopeptide family

181

Tilmicosin

This macrolide drug used to treat cattle and swine is known for having significant toxicity on accidental injection in humans

182

Amoxicillin

Drug of choice for treatment of clostridial myositis in a horse

183

Metronidazole

Drug of choice to treat a clostridium difficile infeciton in a horse

184

Enrofloxacin
Gentamicin

2 antimicrobialswhich are commonly used to treat bacterial infections but which are unlikely to work against anaerobic bacteria

185

Amoxicillin

Drug of choice for treatment of acute foot rot in dairy cattle

186

Gentamicin

This drug has long term residues in the kidneys of cattle such that vets recommend that the drug not be used to treat feedlot cattle even tho it can be legally used for treatment

187

Amoxicillin

Drug of choice for treatment of anthrax in a dog

188

Chloramphenicol

This drug belongs to the acetamide family of drugs

189

Amoxicillin

Clavulanic acid is used as a potentiator in combo w/ this drug