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bacteriology > Neiserria > Flashcards

Neiserria Flashcards

1
Q

Catalase + except for

A

N.elongata

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2
Q

useless to grow in agar plates

A

Neisseria

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3
Q

o main virulence factor
o provides the means of attachment to the organism

A

Pili or fimbriae

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4
Q

Can be found in urogenital tract, anorectal area, oropharynx or
conjunctiva

A

N.gonnor

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5
Q

Requires iron for growth
• Glucose fermenter

A

N.gonnor

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6
Q

Principal virulence of N.gonnor

A

Common pili

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7
Q

2 main cells infected by N. gonorrhoeae:

A

non-ciliated columnar
▪ transitional epithelium

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8
Q

Ophthalmia neonatorum is caused by?

A

N.gonnor

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9
Q

Puruleng arthritis is caused by

A

N.gonnot

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10
Q

N,gonnor is oxidase what?

A

Oxidase positive

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11
Q

• Exaggerated version of catalase test (3% H2O2)
• 30% hydrogen peroxide
• Intense bubble formation/effervescence

A

Superoxol test

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12
Q

Found as commensal inhabitants of the URT

Invasive pathogens
• Transmission of the organism is via airborne droplets

A

N.mening

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13
Q

Accompanied by the appearance of petechiae and may
lead to Disseminated Intravascular Coagulation (DIC)

A

N.mening

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14
Q

takes place when the organism becomes fulminant
▪ rapid spread throughout the body
▪ Disseminated Intravascular Coagulation

A

Waterhouse-Friderichsen syndrome. N.mening

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15
Q

on culture, has a dry, wrinkled, adherent and breadcrumbs
like colonies

A

N. sicca

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16
Q

Yellow pigmented Neisseria species): In
culture, colonies show yellow pigmentation

A

N.flavescence

17
Q

commonly found in the nasopharynx of infants and
children

A

N. lactamica

18
Q

Resembles Neisseria especially under the microscope
o somewhat not really pathologic compared to Neisseri

A

M. Catar

19
Q

3rd most common cause of otitis media and sinusitis in children

A

M.catar

20
Q

Most isolates produce B-lactamase
• Small gram-negative cocci that tend to grow in pair with
adjacent sides flattened

A

M.catar

21
Q

On culture: smooth, opaque, gray to white colonies with
“hockey puck” appearance

A

M.catar

bacteriology (24 decks)

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