streptococcus: basics Flashcards
1
Q
shape
A
cocci in chains
2
Q
gram + or -
A
positive
3
Q
sensitive to
A
heat, drying, high salt concentration, and penicillin
4
Q
lancefield classification
A
differences in a surface antigen called the cell wall C carbohydrate
5
Q
group A
A
S. pyogenes
6
Q
group b (GBS)
A
S. agalactiae
7
Q
no lancefield group classification
A
pneumococci and viridian’s group
8
Q
serotype
A
a difference in the antigenic composition of a structure or product
9
Q
beta-hemolytic strep
A
S. pyogenes
S. agalactiae
10
Q
alpha-hemolytic strep
A
S. pneumonia
11
Q
alpha or gamma hemolytic strep
A
viridian group (S. mutans)
12
Q
S. pyogenes vs. S agalactia
A
S. agalactiae : bacitracin resistant
S. pyogenes: bacitracin sensitive
