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Vet. Bacteriology > Streptococcus > Flashcards

Streptococcus Flashcards

1
Q

Where to find streptococcus

A

worldwide, skin, muc mem, food , milk

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2
Q

Where the name from

A

the greek word necklace

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3
Q

What do streptococci look like

A

cocci with 1 micrometer diameter

they form chains

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4
Q

S are all capsulated T/F

A

F only S.pyogenes, pneumoniae, equi are

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5
Q

Which S. are capsullated

A

S.Pyogenes
S.pneumoniae
S.equi

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6
Q

Do S have flagella

A

No

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7
Q

Which S. have fimbriae

A

S. pyogenes
S. salivarius
S. sanguinis

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8
Q

What kind of resistance do S have?

A

Good resistance

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9
Q

How to culture S. (media, O2?, colonies)

A

enriched media (blood or serum)
fastidious
facultative anaerobs
small translucent colonies

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10
Q

Can you selectively culture S. on Macconkey agar T/F

A

F on Edwards agar

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11
Q

What’s in Edwards agar

A

crystal violet, thallium SO4, esculin and blood

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12
Q

C O

A

both -

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13
Q

O/F test

A

Fermentative

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14
Q

Name all the streptococcus species (14)

A
  • S.pyogenes
  • S.agalactiae
  • S.dysgalactiae
  • S.uberis
  • S.equi
  • -ssp. equi
  • -ssp zooepiemicus
  • S.suis
  • S.porcinus
  • S.canis
  • S.salivarius
  • S.sanguinis
  • S.mutans
  • S.pneumoniae
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15
Q

Which species can only infect Ho

A

S.pyogenes

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16
Q

Which species only infects horses

A

S.equi

17
Q

Scarlet fever is caused by which Bb

A

S.pyogenes

18
Q

Rheumatic fever is caused by which Bb

A

S.pyogenes

19
Q

Human erysipelas is caused by which Bb

A

S.pyogenes

20
Q

Mastitis is caused by which Bb

A

S. agalactiae
S.dysgalactiae
S.uberis

21
Q

What does S.equi ssp. equi cause

A

Strangles in horse

22
Q

What can S.equi ssp zooepidemicus cause

A

suppuration, septicaemia, mastitis

23
Q

Meningitis is caused by which Bb

A

S. suis in pigs

24
Q

S. canis causes what in dogs

A

metritis, septicaemia

25
Q

What does Streptococcus porcinus cause

A

lymphadenitis, abscesses

Vet. Bacteriology (12 decks)

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