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STEP 1 > Micro > Flashcards

Micro Flashcards

1
Q

Group A streptococcus and virulence factor:

A

S. Pyogenes
B hemolytic
Bacitracin sensitive
Hyaluronic acid capsule
M protein
Cause rheumatic fever

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2
Q

Group B streptococcus and virulence factor:

A

S. Agalactiae (mostly in babys)
B hemolytic
Bacitracin resistant
Polysaccharide capsule (composed of galactose and sialic acid)

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3
Q

Phenotypic mixing

A

subsequent progeny would not retain the traits.

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4
Q

Recombination

A

the subsequent progeny would retain the traits.

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5
Q

Norovirus

A

SS RNA
Mc cause of viral gastroenteritis developed countries
Resolves in 2-3 days
No blood of mucus (vomiting y/o diarrhea)
Puede ocurrir en personas vacunadas

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6
Q

Rotavirus

A

Presentación similar a Norovirus pero la prevalencia de Rotavirus bajo debido a la vacunación

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7
Q

The most common organism of purulent cellulitis ?

A

S. Aureus (due to Panton- Valentine leukocidin)

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8
Q

MC cause of non purulent cellulitis

A

Beta hemolytic streptococcus; especially group A

  • S. pyogenes
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STEP 1 (18 decks)

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