Anaerobes Flashcards

1
Q

what is an anaerobic bacteria

A

does not use oxygen to grow

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2
Q

Facultative anaerobe

A

Can grow in either o2 or non o2 environment

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3
Q

anaerobic infections are typically

A

polymicrobial

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4
Q

what are bacteroides

A

bile-resistant, nonspore forming , gram negative rods

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5
Q

bacteroides often implicated in

A

intra-abdominal infections

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6
Q

what causes intra-abdonminal infections

A

disruption of the instestinal cell wall

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7
Q

which species is associated with high mortality

A

B fragilis

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8
Q

Actinomyces is a

A

areotolerant, gram positive rod

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9
Q

What does actinomyces form

A

red to purple lump on the face and neck

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10
Q

what happeneds to the abscence of actinomyces

A

break through the skin and produce sinus tract

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11
Q

is actinomyces infection contagious ?

A

no

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12
Q

Clostridium tetani produce

A

neurotxin that spreads via CNS and causes spasms

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13
Q

Clostridium botulinum causes

A

paralysis due to the prevention of Ach release

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14
Q

where is c. botulinum found

A

improperly canned food that contain spores

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15
Q

c.perfringens cause

A

asymtopmatic or food poisoning

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16
Q

infections of sound tissues can lead to

A

gas gangrene

17
Q

vaccine for which bacteria

A

C.tetani

18
Q

Bartonella is

A

gram negative nonspore forming slow growing rods

19
Q

bartonella is also

A

aerobic, motile and intracellular repication

20
Q

bartonella cant be transmitted via

A

person to person

21
Q

B.henselae is transmitted via

A

cat bite/strach or by the bite of an infected cat flea

22
Q

B.quintana is also known as

A

trench fever

23
Q

how is B.quintana transmitted

A

by poop

24
Q

in immunocomp people both Bh and Bq cause

A

bacillary angiomastosis

25
Q

what is bacillary angiomastosis

A

proliferation of blood vessels causing tumor like masses in skin and other organs

26
Q

is there a vaccine for Bartonella

A

no

27
Q

how is b.bacilliformis transmitted

A

bite of a female sand fly

28
Q

what is stage one of bartonellosis

A

acute oroya fever

invades RBC causing hemolytic anemia
invades vascular endothelial cells causing occlusion and thrombosis

29
Q

what is stage two of bartonellosis

A

warts
vascular skin lesion that last up to a year