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

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

24
Q

in immunocomp people both Bh and Bq cause

A

bacillary angiomastosis

25
what is bacillary angiomastosis
proliferation of blood vessels causing tumor like masses in skin and other organs
26
is there a vaccine for Bartonella
no
27
how is b.bacilliformis transmitted
bite of a female sand fly
28
what is stage one of bartonellosis
acute oroya fever invades RBC causing hemolytic anemia invades vascular endothelial cells causing occlusion and thrombosis
29
what is stage two of bartonellosis
warts vascular skin lesion that last up to a year