Streptococcaceae

Question 1

Staining Reaction and Shape

Answer 1

Gram-positive

Question 2

Motility

Answer 2

Non-motile

Question 3

capsule

Answer 3

Encapsulated/non-encapsulated

Question 4

Catalase

Answer 4

Catalase negative

Question 5

organisms

Answer 5

Homolactic acid organisms

Question 6

Encapsulated Streptococcus

Answer 6

Streptococcus pyogenes

Question 7

Habitat of Streptococcus pyogenes

Answer 7

 Human throat

 Not the normal flora of skin

Question 8

transmission of Streptococcus pyogenes

Answer 8

via respiratory droplets

contact with cutaneous lesions

Question 9

 Anti-phagocytic
o With Fibronectin binding proteins
 Antigenic variation

Answer 9

M PROTEIN

Question 10

 Has hyaluronic acid

 Anti-phagocytic

Answer 10

CAPSULE

Question 11

 Streptococcal Pyrogenic Exotoxin
 Lyosogenized strains
 Responsible for Scarlet Fever

Answer 11

ERYTHROGENIC TOXIN (EGT)

Question 12

 Diagnostic test for Scarlett Fever
 Intradermal injection for ANTIEGT
 BLANCHING PHENOMENON

Answer 12

SCHULTZ-CHARLTON TEST

Question 13

Susceptible: Rash

Answer 13

o DICK’S TEST

Question 14

 Oxygen labile
 Immunogenic (ASTO)
 Stab-technique
 Pour plate technique
 Agar overlay

Answer 14

STREPTOLYSIN O

Question 15

 Oxygen stable
 Serum extractable
 Has affinity for serum

Answer 15

STREPTOLYSIN S

Question 16

 Epidermis

 Yellow crust

Answer 16

PYODERMA/IMPETIGO

Question 17

 Dermal inflammation

 Thickening of the skin

Answer 17

ERYSIPELAS

Question 18

 Strep throat
 Acute
 Dysphagia

Answer 18

PHARYNGITIS

Question 19

 Direct extension

 Hematogenous route

Answer 19

PNEUMONIA

Question 20

NECROTIZING PASCITIS is an Inflammation and necrosis of:

Answer 20

o Skin
o Subcutaneous fat
o Fascia

Question 21

 Flesh eating disease
 3 categories
o Type 2: Group A Streptococci

Answer 21

NECROTIZING PASCITIS

Question 22

 Sandpaper like rash
 Starts on the trunk
 “strawberry tongue”

Answer 22

SCARLET FEVER

Question 23

 Child Birth Fever

 Infection after delivery

Answer 23

PUERPERAL FEVER

Question 24

 Complications

 Autoimmune diseases

Answer 24

SEQUELAE

Question 25

 5 weeks  Joints  May affect the heart  Development to RHD

Answer 25

RHEUMATIC FEVER

Question 26

```  After Cutaneous Infection or Strep Throat  Edema of lower limbs  Hypertension  Dark and smokey urine ```

Answer 26

ACUTE GLORUMERONEPHRITIS

Question 27

 Encapsulated |  BOVINE MASTITIS

Answer 27

Streptococcus agalactiae

Question 28

habitat of Streptococcus agalactiae

Answer 28

Vagina and rectal area

Question 29

TRANSMISSION of Streptococcus agalactiae

Answer 29

Vertical transmission

Question 30

 First 3 days after birth |  High mortality rate

Answer 30

NEONATAL MENINGITIS

Question 31

NEONATAL MENINGITIS is Associated with

Answer 31

``` o Obstetric complications o Rupture of membranes o Premature birth ```

Question 32

remains as a significant cause of invasive disease in the newborn

Answer 32

GBS

Question 33

Can grow in extreme conditions | Resistant to most antimicrobial agents

Answer 33

ENTEROCOCCI

Question 34

ENTEROCOCCI VIRULENCE FACTORS

Answer 34

GELATINASE SERINE PROTEASE CYTOLYSIN

Question 35

NONENTEROCOCCI VIRULENCE FACTORS

Answer 35

ADHESINS HYALURONIDASE DNASE

Question 36

Immunosupression

Answer 36

PREDISPOSING FACTOR

Question 37

 LANCET-SHAPED DIPLOCOCCI  Fastidious  Capnophilic

Answer 37

Streptococcus pneumoniae

Question 38

Streptococcus pneumoniae: habitat

Answer 38

 Human throat |  Nasopharynx

Question 39

Streptococcus pneumoniae: TRANSMISSION

Answer 39

Acquired endogenously

Question 40

Delays ingestion by phagocytes thereby promoting multiplication of the organism in the tissues of the host.

Answer 40

CAPSULE

Question 41

 Exhibits toxicity for pulmonary endothelial cells and direct effect on cilia that contributes to the disruption of endothelial barrier.  Facilitates the access of pneumococci to the alveoli and eventually their spread beyond into the bloodstream.  Lyses phagocytes and suppresses host inflammatory and immune functions.

Answer 41

PNEUMOLYSIN O

Question 42

 Also referred to as spreading factor  It hydrolyses neuraminic acid, an important component of mucus that covers cells of the respiratory tract and protects them from bacterial attachment.

Answer 42

NEURAMIDASE

Question 43

Is an autolysin that causes lytic dispersal of pneumolysin and hemolysin

Answer 43

AMIDASE

Question 44

 LOBAR PNEUMONIA |  Most common bacterial pneumonia

Answer 44

Streptococcus pneumoniae

Question 45

``` into the chamber of the middle ear by way of the eustachian tube and cause middle ear infection called otitis media. ```

Answer 45

OTITIS MEDIA

Question 46

``` into the chamber of the middle ear by way of the eustachian tube and cause middle ear infection called otitis media. ```

Answer 46

SINUSITIS

Question 47

Adult immunocompromised host

Answer 47

MENINGITIS

Question 48

 Alpha hemolytic |  Normal flora of oral cavity

Answer 48

VIRDANS STREPTOCOCCI

Question 49

```  Forms dextran from sucrose  Sticky, mucoid material  Dental plaque  Acid production  Destroys the enamel ```

Answer 49

S. MUTANS

Question 50

Via dental procedure

Answer 50

ENDOCARDITIS