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EPI PQ > MT3- Staphylococcus > Flashcards

MT3- Staphylococcus Flashcards

1
Q

Haemolysins cause haematuria in the case of staphylococcus

A

F

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2
Q

Leucocidins produced by staphylococci damage white blood cells

A

T

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3
Q

Coagulase production is a virulence factor of Staphylococcus aureus

A

T

Extracellular enzymes:
- coagulase
- finrinolysis
- hyalunroidase

toxins:
Extracellular proteins:

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4
Q

Some extracellular enzymes are virulence factors of Staphylococci

A

T

Extracellular enzymes:
- coagulase
- finrinolysis
- hyalunroidase

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5
Q

Haemolysins are virulence factors of Staphylococci

A

T

Extracellular enzymes:
toxins:
- Haemolysins
- leucocidins affects white blood cells
- Enterotoxin
- Exfoliative toxin
Extracellular proteins:

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6
Q

Endotoxins are virulence factors of Staphylococci

A

F

  • enterotoxin
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7
Q

Protein A is a virulence factor of Staphylococci

A

T

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8
Q

Extracellular enzymes are important virulence factors of pathogenic Staphylococci

A

T

Extracellular enzymes:
toxins:
Extracellular proteins:

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9
Q

Haemolysins and leucocidins are important virulence factors of Staphylococci

A

T

Extracellular enzymes:
toxins:
- Haemolysins
- leucocidins affects white blood cells
- Enterotoxin
- Exfoliative toxin
Extracellular proteins:

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10
Q

Some species of Staphylococcus are obligate pathogens

A

F ( facultative pathogens)

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11
Q

Staphylococcus are epiphytes

A

F

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12
Q

Staphylococcus can produce EC enzymes

A

T

  • virulence factor: extracellular enzyme + protein , toxins
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13
Q

Staphylococcus can be found on healthy animals’ mucous membranes

A

T

Occurrence:
- Commensal bacteria on the skin
- mucosal membranes
- Milk, food
- Soil, water, environment

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14
Q

Staphylococcus are gram negative cocci

A

F ( Gram-positive cocci )

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15
Q

Coagulase positive Staphylococcus species are less pathogenic than Coagulase negative

A

F

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16
Q

Abscessation of lymph nodes is a typical sign of Morel’s disease

A

T

Abscesses:
* Superficial lymph nodes
* Subcutaneous tissue

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17
Q

Morels disease is caused by Staphylococcus aureus subsp aureus

A

F

S. aureus subsp. anaerobius

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18
Q

Clinical signs of Morels disease are mainly see above half a year of age

A

T

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19
Q

Morel’s disease is an acute, fast courses disease

A

F

  • Slowly developing chronic disease
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20
Q

Morel’s disease occurs mainly in cattle, small ruminants and pigs

A

F

  • fattening lamb, Sheep (goat)
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21
Q

Interstitial pneumonia is the main postmortem lesion of Morel’s disease

A

F

Abscesses: lymph nodes, subcutaneous tissue

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22
Q

Morels disease can be diagnosed by detecting the agent from the lesions

A

T

Detection of pathogen:
*Smear, Gram staining
*Bacterial culture

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23
Q

Morel’s disease is caused by Staphylococcus aureus subsp. Aureus

A

F

S. aureus subsp. anaerobius

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24
Q

Morel’s disease is mainly seen in suckling lambs

A

F

  • fattening lambs
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25
Q

In Morel’s disease we find abscesses in the subcutis

A

T

Abscesses:
* Superficial lymph nodes
* Subcutaneous tissue

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26
Q

Diarrhoea is the main clinical sign of Morel’s disease

A

F

Abscesses: fistula

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27
Q

Isolation of the agent from lesions of Morel’s disease confirms the diagnosis

A

T

Detection of pathogen
*Smear, Gram staining
*Bacterial culture

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28
Q

Morel’s disease can be seen in sheep and goats

A

T

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29
Q

Morel’s disease can mainly be seen in suckling animals

A

F

  • fattening lambs
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30
Q

Abscesses and purulent inflammation are the typical lesions in the case of Morel’s disease

A

T

  • not sure id purulent inflammation is a typical lesions?
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31
Q

Morel’s disease is caused by Streptococcus pyogenes

A

F

  • S. aureus subsp. anaerobius
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32
Q

Abscesses in the lymph nodes and in the subcutaneous tissue are typical in Morel’s disease.

A

T

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33
Q

Morel’s disease is seen mainly seen in cattle

A

F

  • Sheep (goat):
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34
Q

Abscess formation is the main clinical sign of Morel’s disease

A

T

Abscesses
* Superficial lymph nodes
* Subcutaneous tissue

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35
Q

Morel’s disease affects only lymph nodes in the head

A

F

  • Lymph nodes
  • subcutaneous tissue
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36
Q

Morel ́s disease is caused by Streptococcus zooepidemicus

A

F (Strangles (Druse)

  • S. aureus subsp. anaerobius : morel disease
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37
Q

In case of several clinical sign in Morel ́s disease, antibiotics should be given through drinking water

A

F

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38
Q

Morel disease causes lymph node enlargement

A

T

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39
Q

Morel disease is not a zoonosis.

A

T

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40
Q

Morel’s disease is caused by Staphylococcus hyicus

A

F

  • S. aureus subsp. anaerobius
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41
Q

Ataxia is an important sign of the Morel ́s disease

A

F

  • abscess
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42
Q

In the case of Morel disease per oral antibiotic treatment is used

A

F

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43
Q

Morel’s disease causes subcutaneous abscesses

A

T

  • Superficial lymph nodes
  • Subcutaneous tissue
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44
Q

Methicillin resistant Staphylococcus aureus is generally not passed from animals to humans

A

T

  • not zoonosis in most of the cases !!
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45
Q

Methicillin resistant Staphylococcus aureus strains are obligate pathogens

A

F

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46
Q

Methicillin resistant Staphylococcus aureus strains are more virulent than the methicillin
sensitive ones

A

F

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47
Q

Methicillin-resistant Staphylococcus aureus (MRSA) is resistant against beta-lactam
antibiotic

A

T

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48
Q

Methicillin-resistant Staphylococcus aureus (MRSA) can be asymptomatically carried

A

T

  • Subclinical infection
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49
Q

Methicillin-resistant Staphylococcus aureus (MRSA) can infect humans

A

T

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50
Q

Pneumonia is a frequent clinical sign of rabbit staphylococcosis

A

T

  • upper respiratory disease
51
Q

High ammonia concentration is a predisposing factor of rabbit staphylococcosis

A

T

  • Overcrowding
  • bad quality bedding
  • Bad air quality (wind, ammonia)
52
Q

Middle ear infection can happen in the case of rabbit staphylococcosis

53
Q

Rabbit staphylococcosis is mainly seen in weaned and young rabbits

54
Q

Rabbit staphylococcosis occurs more frequently in young than in adult animals

55
Q

Over-crowding and poor ventilation are predisposing factors of Rabbit staphylococcosis

A

T

  • Overcrowding
  • bad quality bedding
  • Bad air quality (wind, ammonia)
56
Q

Lesions of Rabbit staphylococcosis are limited to the lungs.

A

F

  • respiratory disease!
57
Q

Bronchopneunomia is a typical post-mortem lesion of Rabbit staphylococcosis

A

T

pathology:
- Bronchopneumonia
- purulent tracheal exudates
- Abscesses

58
Q

Rabbit staphylococcosis is caused by Staphylococcus aureus subsp. aureus

59
Q

Rabbit staphylococcosis is caused by Staphylococcus cuniculi

A

F

S. aureus subsp. aureus

60
Q

Subcutaneous abscesses are frequent lesions of rabbit staphylococcosis

61
Q

Middle ear infection can happen in the case of rabbit staphylococcosis.

62
Q

Rabbit staphylococcosis can be prevented by vaccinating the pregnant rabbits with
attenuated vaccine

A

F

  • only Avoid predisposing factors
  • NO VACCINES
63
Q

Staphylococcus in rabbits typically occurs in newborn rabbits

A

F

  • Mostly young animals are affected: suckling, weaning rabbits
64
Q

Aerogenic infection is common in the case of staph in rabbits

A

T (Aerogene (wound)

65
Q

Arthritis can be a clinical sign of staphylococcus infection in rabbits

A

T

pathogenesis:
- wound
- upper respiratory
- lungs
- blood

66
Q

If the ammonia level in the air is high it increases the susceptibility of rabbits to
staphylococcus

67
Q

In rabbit staphylococcosis: one symptom is otitis.

A

T

  • otitis media
68
Q

Staphylococcosis in rabbits typically occurs in newborn rabbits

A

F

  • Mostly young animals are affected: suckling, weaning rabbits
69
Q

Abscess formation can be a clinical sign of staphylococcosis of rabbits

A

T

  • Respiratory symptoms
  • conjunctivitis
  • Arthritis
  • abscesses
  • otitis media
70
Q

Overcrowding is a predisposing factor of rabbit staphylococcosis

A

T

  • Overcrowding
  • bad quality bedding
  • Bad air quality (wind, ammonia)
71
Q

Bronchopneumonia is a frequent clinical sign of rabbit staphylococcosis

A

T

pathology:
- Bronchopneumonia
- purulent tracheal exudates
- Abscesses

72
Q

Staphylococcosis of rabbits is caused by Staphylococcus hyicus.

A

F

S. aureus subsp. aureus

73
Q

Rabbit Staphylococcus can be prevented/treated by vaccination

A

F

  • NO VACCINE
  • Avoid predisposing factors
74
Q

Rabbit staphylococcus occurs in 4-16 weeks old rabbits

75
Q

Rabbit staphylococcus are caused by S. aureus subsp. piriformes.

A

F

S. aureus subsp. aureus

76
Q

Rabbit staphylococcus causes severe respiratory signs in rabbits

77
Q

We can use antibiotic treatment to cure rabbit staphylococcus.

A

T

  • Affected animals: euthanasia
  • Remaining animals: erythromycin, tetracycline
  • Avoid predisposing factors
78
Q

Rabbit staphylococcus is an obligate pathogen

79
Q

Rabbit staphylococcosis typically occurs in suckling rabbits.

A

T

  • Mostly young animals are affected: suckling, weaning rabbits
80
Q

Pneumonia is a typical sign of rabbit staphylococcosis

A

T?? Can’t find it on the pp, think it is false

81
Q

Staphylococcus aureus subsp. anaerobius is the causative agent of rabbit staphylococcosis

A

F

S. aureus subsp. aureus

82
Q

Purulent pneumonia can be seen frequently as a clinical sign of staphylococcosis in grower
chickens.

83
Q

Gumboro disease can predispose chicken to staphylococcosis

84
Q

Staphylococcus aureus subsp. aureus can cause septicemia in day old chicken.

85
Q

Staphylococcus aureus subsp. aureus can cause dermatitis in growers and hens.

A

T

Local lesions: growing, adults
- Arthritis
- dermatitis (plantar ulcer)
- osteomyelitis

86
Q

Staphylococci can cause disease only in day-old birds but not in growers or adults.

A

F

septicemia: day off chicken
local lesions: growing, adults

87
Q

Marek-disease can predispose poultry to staphylococcosis

A

T

infectious:
- bursal disease, Marek’s disease, infectious chicken anaemia
- arthritis

non- infectious:
- overcrowding
- wounds
- shipping, wet bedding

88
Q

Omphalitis is a clinical sign of avian staphylococcosis

A

T

  • septicaemia –> omphalitis , embryo death
  • Arthritis
  • Dermatitis
89
Q

Staphylococcus aureus subsp. aureus can kill the chicken embryo.

A

T

  • septicaemia –> omphalitis , embryo death
  • Arthritis
  • Dermatitis
90
Q

Arthritis is a common clinical sign of avian staphylococcosis

A

T

  • septicaemia –> omphalitis , embryo death
  • Arthritis
  • Dermatitis
91
Q

Pneumonia is a common clinical form of avian staphylococcosis

A

F

  • septicaemia –> omphalitis , embryo death
  • Arthritis
  • Dermatitis
92
Q

Dermatitis is a common clinical sign of avian staphylococcosis

A

T

  • septicaemia –> omphalitis , embryo death
  • Arthritis
  • Dermatitis
93
Q

Staphylococcus aureus subsp. aureus can cause arthritis in poultry

94
Q

Staphylococcus aureus subsp. aureus can cause frequent pneumonia in chicken.

A

F

  • septicaemia –> omphalitis , embryo death
  • Arthritis
  • Dermatitis
95
Q

Staphylococcus aureus subsp. aureus can cause dermatitis in poultry

A

T

  • septicaemia –> omphalitis , embryo death
  • Arthritis
  • Dermatitis
96
Q

Poultry staphylococcus is caused by S. aureus

97
Q

In poultry staphylococcus there is a septicaemic form, giving generalized disease

A

T
F? it is in swine ??

98
Q

Poultry staphylococcus can infect eggs

99
Q

Poultry staphylococcus is a rare disease nowadays

100
Q

Exudative dermatitis of pigs is caused by Staphylococcus aureus subsp. Anaerobius

A

F ( it is in swine ) caused by S. hyicus

101
Q

Vesicles are formed in the case of exudative Dermatitis

A

T

symptoms → vesicula → pustules → rupture→ crusts

102
Q

Necrosis of the skin is the main clinical sign of exudative dermatitis

103
Q

The agent of exudative dermatitis of pigs produces exfoliative toxin

104
Q

The agent of exudative dermatitis enters the host through wounds

A

T

Exfoliative toxins: destroy desmosomes between epithelial cells of stratum granulosum, and spinosum

105
Q

The agent of exudative dermatitis can be passed from piglets to sows

106
Q

The lesions of exudative dermatitis are itching very much

A

F

  • NO ITCHING
107
Q

Exudative dermatitis can be seen in suckling piglets

108
Q

Exudative dermatitis is caused by Staphylococcus aureus.

A

F
S. hyicus

109
Q

Exudative dermatitis is characterized by crust formation

A

T

symptoms → vesicula → pustules → rupture→ crusts

110
Q

Exudative dermatitis has high mortality

A

T

Morbidity 20-100%
mortality can reach 90%

111
Q

Staphylococcus aureus subsp. aureus is the causative agent of exudative dermatitis in pigs

A

F (S. hyicus)

112
Q

Vesicles are formed in the case of exudative dermatitis in pigs

A

T

symptoms → vesicula → pustules → rupture→ crusts

113
Q

Exudative dermatitis is generally seen in fattening pigs

A

F

3-5 day old pigs + weaning pigs

114
Q

Exudative dermatitis can be prevented by attenuated vaccines

A

F

  • Antibiotics
  • Vitamin A, biotin
  • Ectoparasite treatment
  • Hygiene
115
Q

Exudative dermatitis is sometimes seen on the udder of sows

116
Q

Exudative dermatitis of pigs is caused by Staphylococcus hyicus.

117
Q

Exudative dermatitis of pigs is caused by Streptococcus hyicus

A

F

Staphylococcus hyicus.

118
Q

Itching is the major clinical sign of exudative dermatitis in pigs

A

F

  • NO ITCHING
119
Q

Exudative skin inflammation occur usually in pigs 1-4-week-old

120
Q

Exudative dermatitis can be treated with antibiotics

A

T

  • Antibiotics
  • Vitamin A, biotin
  • Ectoparasite treatment
  • Hygiene
121
Q

Vaccination is widely used in order to prevent exudative dermatitis

A

F. NO VACCINATION

  • Antibiotics
  • Vitamin A, biotin
  • Ectoparasite treatment
  • Hygiene
122
Q

Exudative skin inflammation is caused by Staphylococcus aureus

A

F (S. hyicus)

123
Q

Exudative dermatitis cannot occur in adult pig

124
Q

Exudative dermatitis can be spread by lice and ticks

EPI PQ (81 decks)

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