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MED BAC > Haemophilus > Flashcards

Haemophilus Flashcards

1
Q

what bacteria family is pleiomorphic

A

pasteurellaceae

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2
Q

are pasteurellaceae gram neg or pos organisms? shape?

A

gram neg rods or coccobacilli

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3
Q

what kind of respiration do pasteurellaceae do

A

facultative anarobes

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4
Q

t or f: pasteurellaceae organisms are easy to grow

A

F

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5
Q

what is the most clinically important genus in the pasteurellaceae family

A

haemophilus

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6
Q

what haemophilus is the most common

A

H. influenzae

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7
Q

what haemophilus is rare

A

H. parainfluenzae

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8
Q

what are the growth factors that haemophilus require

A

X factor/hemin or v factor/NAD

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9
Q

what kind of media does haemophilus grow on

A

chocolate

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10
Q

what part of haemophilus has endotoxin activity

A

LPS

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11
Q

what differentiates different haemophilus species

A

outer mmb proteins

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12
Q

what do haemphilus use for adhesion

A

pili and non-pills structures

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13
Q

are encapsulated or non capsulated haemphilus more pathogenic

A

Encapsulated

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14
Q

how are encapsulated haemphilus organized

A

A through F

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15
Q

what is the most virulent encapsulated haemphilus

A

H. influenze type B (HiB)

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16
Q

what does the HiB vaccine target

A

PRP capsule

17
Q

who benefits the most from the HiB vaccine

A

kids

18
Q

do more encapsulated or non-capsule haemophilus cause more disease and why

A

non-capsulated b/c of the HiB vaccine

19
Q

where do non encapsulated haemophilus colonize the body

A

respiratory tract

20
Q

what haemophilus species colonize the mouth

A

H. parainfluenzae

21
Q

where do endogenous infections of haemophilus come from

A

oropharynx

22
Q

what haemophilus causes chancroid

A

H. ducreyi

23
Q

how is H. ducreyi spread

A

sex

24
Q

what part of the body is aggregatibacter apart the normal healthy microbiome

A

mouth

25
Q

what organism is extremely sticky

A

aggregatibacter

26
Q

what organism? pt with endocarditis caused by bacteria spreading from mouth into blood

A

aggregatibacter

27
Q

T or F: aggregatibacter can grow on glass

A

T

28
Q

what organism causes localized aggressive periodontitis and human bite wound infections

A

A. actinomycetemcomitans

29
Q

where is pasteurella a commensalist

A

oropharynx

30
Q

what causes a human pasteurella infection

A

animal bite or scratch

31
Q

what makes up the pasteurella polysaccharide capsule

A

hyaluronic acid

32
Q

what antibiotic works on pasteurella

A

penicillin

MED BAC (4 decks)

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