staphylococcus aureus

Question 1

is staphylococcus aureus hospital acquired

Answer 1

yes

Question 2

what is a nosocomial infection

Answer 2

infections originating in hospital

Question 3

what are hospital acquired infections

Answer 3

infections that are not present at the time of admission but occur in patient during admission

Question 4

what gram is S. Aureus

Answer 4

positive

Question 5

how does s.auereus establish an infection in terms of adhesion, invasion and biofilm formation

Answer 5

adhesion: has several adhesion proteins that aid bacterial attachment to host cell surface
invasion: where there is a breach in epithelial cells, S.aureus can penetrate to the deeper layers of tissue

biofilm formation: forms biofilms which antibiotics cannot penetrate

Question 6

what is the percentage of people who have S.aureus naturally on their skin?

Answer 6

30

Question 7

what are the types of infections s.aureus causes

Answer 7

skin and soft tissue infections
bone & joint
infection of the heart valves

Question 8

is s.aureus resistant to antibiotics?

Answer 8

extremely yes

Question 9

why is S.aureus highly resistant to antibiotics

Answer 9

biofilms and can modify the drug target for beta-lactam and vancomycin

Question 10

how can we treat s.aureus

Answer 10

vancomycin

Question 11

what are the two methods s.aureus is spread

Answer 11

endogenously and exogenous

Question 12

what is endogenously

Answer 12

a patient already colonised can spread to other parts of their body

Question 13

what is exogenous

Answer 13

person to person by direct contact

Question 14

how can we prevent s.aureus

Answer 14

practising hand hygiene, covering wounds and lesions, using PPE