MT3- Staphylococcus Flashcards
1
Q
Haemolysins cause haematuria in the case of staphylococcus
A
F
2
Q
Leucocidins produced by staphylococci damage white blood cells
A
T
3
Q
Coagulase production is a virulence factor of Staphylococcus aureus
A
T
Extracellular enzymes:
- coagulase
- finrinolysis
- hyalunroidase
toxins:
Extracellular proteins:
4
Q
Some extracellular enzymes are virulence factors of Staphylococci
A
T
Extracellular enzymes:
- coagulase
- finrinolysis
- hyalunroidase
5
Q
Haemolysins are virulence factors of Staphylococci
A
T
Extracellular enzymes:
toxins:
- Haemolysins
- leucocidins affects white blood cells
- Enterotoxin
- Exfoliative toxin
Extracellular proteins:
6
Q
Endotoxins are virulence factors of Staphylococci
A
F
- enterotoxin
7
Q
Protein A is a virulence factor of Staphylococci
A
T
8
Q
Extracellular enzymes are important virulence factors of pathogenic Staphylococci
A
T
Extracellular enzymes:
toxins:
Extracellular proteins:
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:
10
Q
Some species of Staphylococcus are obligate pathogens
A
F ( facultative pathogens)
11
Q
Staphylococcus are epiphytes
A
F
12
Q
Staphylococcus can produce EC enzymes
A
T
- virulence factor: extracellular enzyme + protein , toxins
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
14
Q
Staphylococcus are gram negative cocci
A
F ( Gram-positive cocci )
15
Q
Coagulase positive Staphylococcus species are less pathogenic than Coagulase negative
A
F
16
Q
Abscessation of lymph nodes is a typical sign of Morel’s disease
A
T
Abscesses:
* Superficial lymph nodes
* Subcutaneous tissue
17
Q
Morels disease is caused by Staphylococcus aureus subsp aureus
A
F
S. aureus subsp. anaerobius
18
Q
Clinical signs of Morels disease are mainly see above half a year of age
A
T
19
Q
Morel’s disease is an acute, fast courses disease
A
F
- Slowly developing chronic disease
20
Q
Morel’s disease occurs mainly in cattle, small ruminants and pigs
A
F
- fattening lamb, Sheep (goat)
21
Q
Interstitial pneumonia is the main postmortem lesion of Morel’s disease
A
F
Abscesses: lymph nodes, subcutaneous tissue
22
Q
Morels disease can be diagnosed by detecting the agent from the lesions
A
T
Detection of pathogen:
*Smear, Gram staining
*Bacterial culture
23
Q
Morel’s disease is caused by Staphylococcus aureus subsp. Aureus
A
F
S. aureus subsp. anaerobius
24
Q
Morel’s disease is mainly seen in suckling lambs
A
F
- fattening lambs
25
In Morel's disease we find abscesses in the subcutis
T
Abscesses:
* Superficial lymph nodes
* Subcutaneous tissue
26
Diarrhoea is the main clinical sign of Morel's disease
F
Abscesses: fistula
27
Isolation of the agent from lesions of Morel's disease confirms the diagnosis
T
Detection of pathogen
*Smear, Gram staining
*Bacterial culture
28
Morel's disease can be seen in sheep and goats
T
29
Morel's disease can mainly be seen in suckling animals
F
- fattening lambs
30
Abscesses and purulent inflammation are the typical lesions in the case of Morel's disease
T
- not sure id purulent inflammation is a typical lesions?
31
Morel's disease is caused by Streptococcus pyogenes
F
- S. aureus subsp. anaerobius
32
Abscesses in the lymph nodes and in the subcutaneous tissue are typical in Morel's disease.
T
33
Morel’s disease is seen mainly seen in cattle
F
- Sheep (goat):
34
Abscess formation is the main clinical sign of Morel’s disease
T
Abscesses
* Superficial lymph nodes
* Subcutaneous tissue
35
Morel’s disease affects only lymph nodes in the head
F
- Lymph nodes
- subcutaneous tissue
36
Morel ́s disease is caused by Streptococcus zooepidemicus
F (Strangles (Druse)
* S. aureus subsp. anaerobius : morel disease
37
In case of several clinical sign in Morel ́s disease, antibiotics should be given through drinking water
F
38
Morel disease causes lymph node enlargement
T
39
Morel disease is not a zoonosis.
T
40
Morel’s disease is caused by Staphylococcus hyicus
F
* S. aureus subsp. anaerobius
41
Ataxia is an important sign of the Morel ́s disease
F
- abscess
42
In the case of Morel disease per oral antibiotic treatment is used
F
43
Morel's disease causes subcutaneous abscesses
T
* Superficial lymph nodes
* Subcutaneous tissue
44
Methicillin resistant Staphylococcus aureus is generally not passed from animals to humans
T
- not zoonosis in most of the cases !!
45
Methicillin resistant Staphylococcus aureus strains are obligate pathogens
F
46
Methicillin resistant Staphylococcus aureus strains are more virulent than the methicillin
sensitive ones
F
47
Methicillin-resistant Staphylococcus aureus (MRSA) is resistant against beta-lactam
antibiotic
T
48
Methicillin-resistant Staphylococcus aureus (MRSA) can be asymptomatically carried
T
* Subclinical infection
49
Methicillin-resistant Staphylococcus aureus (MRSA) can infect humans
T
50
Pneumonia is a frequent clinical sign of rabbit staphylococcosis
T
- upper respiratory disease
51
High ammonia concentration is a predisposing factor of rabbit staphylococcosis
T
- Overcrowding
- bad quality bedding
- Bad air quality (wind, ammonia)
52
Middle ear infection can happen in the case of rabbit staphylococcosis
T
53
Rabbit staphylococcosis is mainly seen in weaned and young rabbits
T
54
Rabbit staphylococcosis occurs more frequently in young than in adult animals
T
55
Over-crowding and poor ventilation are predisposing factors of Rabbit staphylococcosis
T
- Overcrowding
- bad quality bedding
- Bad air quality (wind, ammonia)
56
Lesions of Rabbit staphylococcosis are limited to the lungs.
F
- respiratory disease!
57
Bronchopneunomia is a typical post-mortem lesion of Rabbit staphylococcosis
T
pathology:
- Bronchopneumonia
- purulent tracheal exudates
- Abscesses
58
Rabbit staphylococcosis is caused by Staphylococcus aureus subsp. aureus
T
59
Rabbit staphylococcosis is caused by Staphylococcus cuniculi
F
S. aureus subsp. aureus
60
Subcutaneous abscesses are frequent lesions of rabbit staphylococcosis
T
61
Middle ear infection can happen in the case of rabbit staphylococcosis.
T
62
Rabbit staphylococcosis can be prevented by vaccinating the pregnant rabbits with
attenuated vaccine
F
- only Avoid predisposing factors
- NO VACCINES
63
Staphylococcus in rabbits typically occurs in newborn rabbits
F
* Mostly young animals are affected: suckling, weaning rabbits
64
Aerogenic infection is common in the case of staph in rabbits
T (Aerogene (wound)
65
Arthritis can be a clinical sign of staphylococcus infection in rabbits
T
pathogenesis:
- wound
- upper respiratory
- lungs
- blood
66
If the ammonia level in the air is high it increases the susceptibility of rabbits to
staphylococcus
T
67
In rabbit staphylococcosis: one symptom is otitis.
T
- otitis media
68
Staphylococcosis in rabbits typically occurs in newborn rabbits
F
* Mostly young animals are affected: suckling, weaning rabbits
69
Abscess formation can be a clinical sign of staphylococcosis of rabbits
T
- Respiratory symptoms
- conjunctivitis
- Arthritis
- abscesses
- otitis media
70
Overcrowding is a predisposing factor of rabbit staphylococcosis
T
- Overcrowding
- bad quality bedding
- Bad air quality (wind, ammonia)
71
Bronchopneumonia is a frequent clinical sign of rabbit staphylococcosis
T
pathology:
- Bronchopneumonia
- purulent tracheal exudates
- Abscesses
72
Staphylococcosis of rabbits is caused by Staphylococcus hyicus.
F
S. aureus subsp. aureus
73
Rabbit Staphylococcus can be prevented/treated by vaccination
F
- NO VACCINE
- Avoid predisposing factors
74
Rabbit staphylococcus occurs in 4-16 weeks old rabbits
T
75
Rabbit staphylococcus are caused by S. aureus subsp. piriformes.
F
S. aureus subsp. aureus
76
Rabbit staphylococcus causes severe respiratory signs in rabbits
T
77
We can use antibiotic treatment to cure rabbit staphylococcus.
T
* Affected animals: euthanasia
* Remaining animals: erythromycin, tetracycline
* Avoid predisposing factors
78
Rabbit staphylococcus is an obligate pathogen
F
79
Rabbit staphylococcosis typically occurs in suckling rabbits.
T
* Mostly young animals are affected: suckling, weaning rabbits
80
Pneumonia is a typical sign of rabbit staphylococcosis
T?? Can't find it on the pp, think it is false
81
Staphylococcus aureus subsp. anaerobius is the causative agent of rabbit staphylococcosis
F
S. aureus subsp. aureus
82
Purulent pneumonia can be seen frequently as a clinical sign of staphylococcosis in grower
chickens.
F
83
Gumboro disease can predispose chicken to staphylococcosis
T ??
84
Staphylococcus aureus subsp. aureus can cause septicemia in day old chicken.
T
85
Staphylococcus aureus subsp. aureus can cause dermatitis in growers and hens.
T
Local lesions: growing, adults
- Arthritis
- dermatitis (plantar ulcer)
- osteomyelitis
86
Staphylococci can cause disease only in day-old birds but not in growers or adults.
F
septicemia: day off chicken
local lesions: growing, adults
87
Marek-disease can predispose poultry to staphylococcosis
T
infectious:
- bursal disease, Marek’s disease, infectious chicken anaemia
- arthritis
non- infectious:
- overcrowding
- wounds
- shipping, wet bedding
88
Omphalitis is a clinical sign of avian staphylococcosis
T
- septicaemia --> omphalitis , embryo death
- Arthritis
- Dermatitis
89
Staphylococcus aureus subsp. aureus can kill the chicken embryo.
T
- septicaemia --> omphalitis , embryo death
- Arthritis
- Dermatitis
90
Arthritis is a common clinical sign of avian staphylococcosis
T
- septicaemia --> omphalitis , embryo death
- Arthritis
- Dermatitis
91
Pneumonia is a common clinical form of avian staphylococcosis
F
- septicaemia --> omphalitis , embryo death
- Arthritis
- Dermatitis
92
Dermatitis is a common clinical sign of avian staphylococcosis
T
- septicaemia --> omphalitis , embryo death
- Arthritis
- Dermatitis
93
Staphylococcus aureus subsp. aureus can cause arthritis in poultry
T
94
Staphylococcus aureus subsp. aureus can cause frequent pneumonia in chicken.
F
- septicaemia --> omphalitis , embryo death
- Arthritis
- Dermatitis
95
Staphylococcus aureus subsp. aureus can cause dermatitis in poultry
T
- septicaemia --> omphalitis , embryo death
- Arthritis
- Dermatitis
96
Poultry staphylococcus is caused by S. aureus
T
97
In poultry staphylococcus there is a septicaemic form, giving generalized disease
T
F? it is in swine ??
98
Poultry staphylococcus can infect eggs
T
99
Poultry staphylococcus is a rare disease nowadays
F
100
Exudative dermatitis of pigs is caused by Staphylococcus aureus subsp. Anaerobius
F ( it is in swine ) caused by S. hyicus
101
Vesicles are formed in the case of exudative Dermatitis
T
symptoms → vesicula → pustules → rupture→ crusts
102
Necrosis of the skin is the main clinical sign of exudative dermatitis
F
103
The agent of exudative dermatitis of pigs produces exfoliative toxin
T
104
The agent of exudative dermatitis enters the host through wounds
T
Exfoliative toxins: destroy desmosomes between epithelial cells of stratum granulosum, and spinosum
105
The agent of exudative dermatitis can be passed from piglets to sows
T
106
The lesions of exudative dermatitis are itching very much
F
- NO ITCHING
107
Exudative dermatitis can be seen in suckling piglets
T
108
Exudative dermatitis is caused by Staphylococcus aureus.
F
S. hyicus
109
Exudative dermatitis is characterized by crust formation
T
symptoms → vesicula → pustules → rupture→ crusts
110
Exudative dermatitis has high mortality
T
Morbidity 20-100%
mortality can reach 90%
111
Staphylococcus aureus subsp. aureus is the causative agent of exudative dermatitis in pigs
F (S. hyicus)
112
Vesicles are formed in the case of exudative dermatitis in pigs
T
symptoms → vesicula → pustules → rupture→ crusts
113
Exudative dermatitis is generally seen in fattening pigs
F
3-5 day old pigs + weaning pigs
114
Exudative dermatitis can be prevented by attenuated vaccines
F
- Antibiotics
- Vitamin A, biotin
- Ectoparasite treatment
- Hygiene
115
Exudative dermatitis is sometimes seen on the udder of sows
T
116
Exudative dermatitis of pigs is caused by Staphylococcus hyicus.
T
117
Exudative dermatitis of pigs is caused by Streptococcus hyicus
F
Staphylococcus hyicus.
118
Itching is the major clinical sign of exudative dermatitis in pigs
F
- NO ITCHING
119
Exudative skin inflammation occur usually in pigs 1-4-week-old
T
120
Exudative dermatitis can be treated with antibiotics
T
- Antibiotics
- Vitamin A, biotin
- Ectoparasite treatment
- Hygiene
121
Vaccination is widely used in order to prevent exudative dermatitis
F. NO VACCINATION
- Antibiotics
- Vitamin A, biotin
- Ectoparasite treatment
- Hygiene
122
Exudative skin inflammation is caused by Staphylococcus aureus
F (S. hyicus)
123
Exudative dermatitis cannot occur in adult pig
F
124
Exudative dermatitis can be spread by lice and ticks
F
