Streptococcus infections of the skin

Question 1

gram positive bacteria that causes many infections like Meningitis, pneumonia, sore throats, endocarditis, dental cavities

Answer 1

Streptococci

Question 2

Why is classification of streptococcus complicated?

Answer 2

It has almost 100 species

Question 3

Identification schemes for streptococci

Answer 3

Serological/ hemolytic patterns, biochemical/physical properties

Question 4

What do streptococci secrete as they grow?

Answer 4

toxins and enzymes

Question 5

toxins secreted by streptococci which lyse red blood cells

Answer 5

hemolysins

Question 6

3 types of hemolysins (ABG)

Answer 6

Alpha; Beta; Gamma

Question 7

type hemolytic streptococci often associated w/ human disease

Answer 7

Beta hemolysins

Question 8

most important GAS (Group A Streptococcus) of beta hemolytic streptococcus

Answer 8

Streptococcus Pyogenes

Question 9

Although typically localized, streptococci become destructive if_____?

Answer 9

bacteria reaches deep tissues

Question 10

GAS infection aka flesh eating infection

Answer 10

Necrotizing Fasciitis

Question 11

when S. pyogenes infects dermal layer and can spread red patches; if gets into blood streams can cause sepsis

Answer 11

erysipelas