MT3- Staphylococcus Flashcards
Haemolysins cause haematuria in the case of staphylococcus
F
Leucocidins produced by staphylococci damage white blood cells
T
Coagulase production is a virulence factor of Staphylococcus aureus
T
Extracellular enzymes:
- coagulase
- finrinolysis
- hyalunroidase
toxins:
Extracellular proteins:
Some extracellular enzymes are virulence factors of Staphylococci
T
Extracellular enzymes:
- coagulase
- finrinolysis
- hyalunroidase
Haemolysins are virulence factors of Staphylococci
T
Extracellular enzymes:
toxins:
- Haemolysins
- leucocidins affects white blood cells
- Enterotoxin
- Exfoliative toxin
Extracellular proteins:
Endotoxins are virulence factors of Staphylococci
F
- enterotoxin
Protein A is a virulence factor of Staphylococci
T
Extracellular enzymes are important virulence factors of pathogenic Staphylococci
T
Extracellular enzymes:
toxins:
Extracellular proteins:
Haemolysins and leucocidins are important virulence factors of Staphylococci
T
Extracellular enzymes:
toxins:
- Haemolysins
- leucocidins affects white blood cells
- Enterotoxin
- Exfoliative toxin
Extracellular proteins:
Some species of Staphylococcus are obligate pathogens
F ( facultative pathogens)
Staphylococcus are epiphytes
F
Staphylococcus can produce EC enzymes
T
- virulence factor: extracellular enzyme + protein , toxins
Staphylococcus can be found on healthy animals’ mucous membranes
T
Occurrence:
- Commensal bacteria on the skin
- mucosal membranes
- Milk, food
- Soil, water, environment
Staphylococcus are gram negative cocci
F ( Gram-positive cocci )
Coagulase positive Staphylococcus species are less pathogenic than Coagulase negative
F
Abscessation of lymph nodes is a typical sign of Morel’s disease
T
Abscesses:
* Superficial lymph nodes
* Subcutaneous tissue
Morels disease is caused by Staphylococcus aureus subsp aureus
F
S. aureus subsp. anaerobius
Clinical signs of Morels disease are mainly see above half a year of age
T
Morel’s disease is an acute, fast courses disease
F
- Slowly developing chronic disease
Morel’s disease occurs mainly in cattle, small ruminants and pigs
F
- fattening lamb, Sheep (goat)
Interstitial pneumonia is the main postmortem lesion of Morel’s disease
F
Abscesses: lymph nodes, subcutaneous tissue
Morels disease can be diagnosed by detecting the agent from the lesions
T
Detection of pathogen:
*Smear, Gram staining
*Bacterial culture
Morel’s disease is caused by Staphylococcus aureus subsp. Aureus
F
S. aureus subsp. anaerobius
Morel’s disease is mainly seen in suckling lambs
F
- fattening lambs
In Morel’s disease we find abscesses in the subcutis
T
Abscesses:
* Superficial lymph nodes
* Subcutaneous tissue
Diarrhoea is the main clinical sign of Morel’s disease
F
Abscesses: fistula
Isolation of the agent from lesions of Morel’s disease confirms the diagnosis
T
Detection of pathogen
*Smear, Gram staining
*Bacterial culture
Morel’s disease can be seen in sheep and goats
T
Morel’s disease can mainly be seen in suckling animals
F
- fattening lambs
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?
Morel’s disease is caused by Streptococcus pyogenes
F
- S. aureus subsp. anaerobius
Abscesses in the lymph nodes and in the subcutaneous tissue are typical in Morel’s disease.
T
Morel’s disease is seen mainly seen in cattle
F
- Sheep (goat):
Abscess formation is the main clinical sign of Morel’s disease
T
Abscesses
* Superficial lymph nodes
* Subcutaneous tissue
Morel’s disease affects only lymph nodes in the head
F
- Lymph nodes
- subcutaneous tissue
Morel ́s disease is caused by Streptococcus zooepidemicus
F (Strangles (Druse)
- S. aureus subsp. anaerobius : morel disease
In case of several clinical sign in Morel ́s disease, antibiotics should be given through drinking water
F
Morel disease causes lymph node enlargement
T
Morel disease is not a zoonosis.
T
Morel’s disease is caused by Staphylococcus hyicus
F
- S. aureus subsp. anaerobius
Ataxia is an important sign of the Morel ́s disease
F
- abscess
In the case of Morel disease per oral antibiotic treatment is used
F
Morel’s disease causes subcutaneous abscesses
T
- Superficial lymph nodes
- Subcutaneous tissue
Methicillin resistant Staphylococcus aureus is generally not passed from animals to humans
T
- not zoonosis in most of the cases !!
Methicillin resistant Staphylococcus aureus strains are obligate pathogens
F
Methicillin resistant Staphylococcus aureus strains are more virulent than the methicillin
sensitive ones
F
Methicillin-resistant Staphylococcus aureus (MRSA) is resistant against beta-lactam
antibiotic
T
Methicillin-resistant Staphylococcus aureus (MRSA) can be asymptomatically carried
T
- Subclinical infection
Methicillin-resistant Staphylococcus aureus (MRSA) can infect humans
T