NEISERRIA AND MORAXELLA Flashcards

(39 cards)

1
Q

Neisseria gonorrhoeae often called

A

gonococci

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2
Q

Neisseria meningitidis often
called ___ are the primary human
pathogens of the genus

A

meningococci

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3
Q

Neisseria ___ is not considered to be
part of the normal biota and is always
pathogenic.
While Neisseria Meningitidis may be found as
a commensal inhabitant of the upper
respiratory tract of carriers, but it can also
become an invasive pathogen.

A

gonorrhoeae

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4
Q

Also known as “clap” from the French word clapoir
meaning “brothel”

A

gonorrhoeae

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5
Q

the flow of seed

A

gonorrhoeae

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6
Q

produces large amounts of extracellular
polysaccharide when grown in media containing
1% or 5% sucrose

A

N polysaccharea

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7
Q
  • misidentified as N. gonorrhoeae
  • Non-glucose fermenter
  • Grows on SBA
  • Susceptible to colistin
  • The colony morphology of neisseria ___is
    also similar to one of the strains of the neisseria
    gonorrhoeae on chocolate aga
A

cinerea

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8
Q

yellow-pigmented Neisseria species that is
asaccharolytic

A

N. flavescens
q

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9
Q

arge, very mucoid colonies (often adhere to the
agar)

A

N. mucosa

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10
Q
  • glucose, maltose and lactose fermenter
  • Misidentified as N. meningitidis (glucose and
    maltose fermenter only)
  • Neisseria ___can be misidentified as
    neisseria meningitidis because of its similar
    colony morphology, but take note neisseria
    lactamica is slightly smaller compared with
    neisseria meningitidis.
A

lactamica

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11
Q

produces large amounts of extracellular
polysaccharide when grown in media containing
1% or 5% sucrose

A

N. polysaccharea

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12
Q

dry, wrinkled, adherent, and breadcrumb-like
colonies
- the word ____ in latin means dry

A

sicca

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13
Q

“less yellow”

A

N. subflava

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14
Q

antibiotic of choice for neiserria

A

Cephalosporin

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15
Q

The eyes are coated with gonococci as the baby
passes down the birth cana

A

ophthalmia neonatorum

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16
Q

preffered swab for Neisseria gonorrhoeae

A

dacron or rayon swab

17
Q

preffered Transport media for Neisseria gonorrhoeae

18
Q

preferred Transport media for Neisseria gonorrhoeae

19
Q

Middle ear effusion, nasopharynx, sinus aspirates,
sputum aspirates, or bronchial aspirates

A

Moraxella catarrhalis

20
Q

● SBA and CAP colony morphology - smooth, opaque,
gray-to-white colonies “hockey puck” – colony remains
intact when pushed across the plate with a loop
Older colonies – “wagon-wheel” appearance

A

Moraxella catarrhalis

21
Q

In contrast to neisseria species that have an
optimal growth temperature of 35°C to 37°C,
most strains of ___ can
tolerate lower temperatures and grow well at
28°C.

A

moraxella catarrhalis

22
Q

Similar to neisseria species, ___ is oxidase and catalase positive.

A

moraxella
catarrhalis

23
Q

is it true that many neisseria are capnophilic?

24
Q

natural habitat of neisseria spp

A

respiratory and urogenital tracts of various animals

25
Neisseria meningitidis is a commensal inhabitant of what part of the body
upper respiratory tract
26
pathogenic neisseria spp are fastidious organisms, requiring enriched media for optimal recovery and are sensitive to unfavorable environment conditions true or false
true
27
how to neisseria gonorrhoeae and meningitidis require iron for growth?
they compete with human host for iron by binding human transferrin to specific surface receptors
28
A specie of Neisseria that has been isolated from dog bites in human
Neisseria weaveri
29
virulence factors of neisseria spp
receptorsfor human transferrin capsule (N.menigitidis) pili cell membrane proteins lipooligosaccharide or endotoxin IgA protease
30
an acute pyogenic infection of nonciliated columnar and transitional epithelium pyogenic means - producing pus
gonorrhea
31
why do gonorrhea is termed as such from the meaning of "flow of seed"
the urethral discharge was been mistaken for semen
32
gonorrhoea is 2nd to what disease when it comes to number of confirmed sexually transmitted bacterial infections in US
chlamydia trachomatis
33
incubation period of gonorrhea
2-7 days
34
manifestation of gonorrhea in men
urethritis purulent discharge dysuria - painful urination
35
most common site of gonorrhea in women
endocervix
36
50 percent of women with gonorrhea is asymptomatic, leading to complications such as
pelvic inflammatory disease sterility ectopic pregnancy peri hepatitis (FITS-HUGH-CURTIS SYNDROME )
37
newborns can acquire gonorrhoea during vaginal delivery thrpugh an infected birth canal
ophthalmia neonatorum
38
ophthalmia neonatorum what is the treatment
eye drop - erythromycin
39