Test 2

Question 0

F protein

Answer 0

Strep

Adhesion and evasion of epithelial cells

Question 1

Capsule

Answer 1

Strep

inhibits phagocytosis

Question 2

Lipoteichoic Acid

Answer 2

Strep

adhesion to epithelial cells

Question 3

M-like proteins

Answer 3

Strep
inactivate IgM and IgG
inhibit protease
no antibodies form against them

Question 4

Enterotoxin C & D

Answer 4

Contaminated milk

Question 5

Exfoliative toxins

Answer 5

Staph - CPS
Cause SSSS and Bullous Impetigo
Breaks proteins that bind cells together

Question 6

Streptokinase

Answer 6

Strep
Convert plasminogen to plasmin
plasmin breaks down colts
infection spreads better

Question 7

Streptolysin O

Answer 7

Strep
Oxygen liable
Immunogenic

Question 8

Streptolysin S

Answer 8

Strep
Oxygen stable (S)
Serum dependent
NON-immunogenic

Question 9

Alpha toxin

Answer 9

Staph - CPS
heat stable
disrupt membrane —> lysis

Question 10

Diseases treated by broad spectrum penicillins and cephalosporins

Answer 10

Group A strep of allergic to Penicillin G
Strep pneumoniae - pneumonia and bacteremia
CPS - SSSS, Impetigo, acute endocarditis
CNS

Question 11

Beta toxin

Answer 11

Staph - CPS
Heat liable
works with alpha toxin

Question 12

Delta toxin

Answer 12

Staph
Heat stable
Detergent

Question 13

enterotoxin

Answer 13

Staph
Heat stable
Resist digestive enzymes

Question 14

peptidoglycan

Answer 14

Staph - CPS & CNS
endotoxin
induces fever

Question 15

Diseases treated by narrow spectrum penicillins

Answer 15

Group A strep
Group B strep
Acute Endocarditis caused by CPS
Subacute endocarditis caused by CNS

Question 16

Enterotoxin A

Answer 16

Food poisoning

Question 17

Enterotoxin B

Answer 17

Enterocolitis

Question 18

Diseases treated by chloramphenicol

Answer 18

Strep pneumoniae - meningitis

Question 19

Diseases treated by sulfonamides

Answer 19

CNS - UTIs

Question 20

TSST

Answer 20

Staph - CPS
Heat stable
resist digestive enzymes
can penetrate and go systemic

Question 21

Diseases treated by macrolides

Answer 21

Group A strep if allergic to Penicillin G
Strep pneumoniae - pneumonia and bacteremia
CNS - subacute endocarditis

Question 22

What are the diseases only caused by lysogenic strains?

Answer 22

Scarlet Fever
Strep TSS
SSSS - Staphylococcal Scalded Skin Syndrome
Staph Impetigo

Question 23

Describe each of the 5 periods of disease.

Answer 23

Incubation - The period between infection and first signs
Prodromal - first mild symptoms appear
Illness - Diagnostic s/s symptoms, immune response highest
Decline - Symptoms subside
Convalescence - Actively gain strength and return to health

Question 25

deoxyribonuclease

Answer 25

Strep Loosens up DNA Increases viscosity allows for spread of infection

Question 26

Describe Koch's postulates.

Answer 26

Suspect agent found in all sick, and absent in all healthy Isolate from sick and grow in culture Infect healthy person, develops disease Re-isolate and grow in culture

Question 27

What is a perinatal infection

Answer 27

An infection that occurs while a child is in the birth canal