6 Infections at the Surface Flashcards
What is a surface?
Interface between a solid and either a liquid or gas
List some bacteria found on the skin?
Staph Aureus
Coagulase negative Staphylococci
Entero Bacteriacea
What is the microflora?
The bacteria found naturally on the body
Where is Neisseria Meningitides carried on humans?
Nasopharynx
State a bacteria that is a resident of the mouth?
Streptococci Viridans
What colour do Strep Viridans produce on a blood agar?
Green - Gamma haemolytic
If Strep Viiridans gets in blood stream what pathology can it cause?
Endocarditis
How does Strep Viridans commonly get in the blood?
Dental extraction
How do people get infections
Invasion
Migration
Innocculation
Haemotagenous
List some prosthetic surfaces that are common sites of infection?
IV lines
Prosthetic joints
Cardiac Valves
Pacemaking vires
Give a way that might be able to distinguish if endocarditis is native valve of prosphetic valve?
Probably just asked if they have had a valve replacement
Prosthetic valve endocarditis can appear in less than a year
What bacteria causes prosthetic joint infectios?
Coagulase negative staphylocci
Staphylococcus aureus
What do bacteria use to adhere to surfaces?
Pilli or fimbriae
What is a biofilm?
A group of bacteria that stick together
How do bacteria in a biofilm chat?
Quorum sensing
