3. C) avoiding antibody Flashcards
1
Q
Staph aureus
A
Staph. aureus has a surface protein called protein A a FC receptor that binds IgG. prevents fn of anitbody. hide bacteria antigenically
2
Q
antigenic variation
A
antigenic variation
3
Q
mimicking host molecules
A
eg S. pyogenes (gram +ive) some strains have a capsule composed of hyaluronic acid. polysaccharide found in human tisse, not antigenic