Neisseria Flashcards

1
Q

what kind of fermentation do neisseria do

A

aerobic

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2
Q

what kind of bacteria are neisseria

A

gram neg cocci

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3
Q

what is the arrangements of neisseria

A

diplococci

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4
Q

what are the oxidase and cat results of neisseria

A

oxi pos, cat pos

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5
Q

T or F: neisseria are motile

A

F

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6
Q

are neisseria part of the normal microbiome? if so where

A

yes; back of throat and genital tract

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7
Q

T or F: pathogenic species of neisseria are fastidious

A

T

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8
Q

what kind of host can pathogenic neisseria infect

A

humans only.

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9
Q

what shape is n. meningiditis

A

meningococci

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10
Q

where in the body does n. meningiditis colonize the body without causing disease

A

nasopharynx

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11
Q

what kind of media does n. meningiditis grow on

A

blood agar and chocolate

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12
Q

what kind of sugar does n. meningiditis oxidize

A

glucose and maltose

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13
Q

what shape is n. gonorrhoeae

A

gonococci

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14
Q

is n. gonorrhoeae part of the normal microbiome

A

no

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15
Q

what kind of media does n. gonorrhoeae grow on

A

chocolate

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16
Q

what are the conditions n. gonorrhoeae grows at (3)

A

body temp, humid, with 5% CO2

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17
Q

how is n. gonorrhoeae transmitted

A

sexually

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18
Q

what neisseria has a polysaccharide capsule

A

n. meningitidis

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19
Q

how is n. meningitidis serogrouped

A

based on palysaccharide capsule

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20
Q

n. gonorrhoeae has what that acts like a capsule

A

neg surface charge

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21
Q

do pathogenic or non pathogenic neisseria have pili

A

both

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22
Q

what do pathogenic strains of neisseria use pili for

A

attachment, neutrophil killing

23
Q

what allows pathogenic neisseria to get reinfection

A

antigenic variation of pilin

24
Q

what kind of porin protein is on the outer mmb of n gonorrhoeae and n meningiditis

25
what is the function of PorB
invasion and protection of bacteria
26
what is the function of spa proteins
binding and signaling
27
what is the function of Rmp proteins
non recognition of bacteria surface proteins
28
does n. meningidis or gonohoerea have more bacterial surface receptors
gonococci
29
what is an LOS
short sugar on the outer mmb of neisseria
30
what kind of toxin does the LOS act like
endotoxin
31
what coats the outer mmb blebs
LOS
32
what does n. meningiditis and n. gonorrhoeae produce that chops up abs
A1 protase
33
what does gonococcal LOS stimulate the release of
tumor necrosis factor alpha
34
who are usually the asymptomatic carriers of n. gonorrhoeae
women
35
gonorrhea in men is the infection in the ___
urethra
36
gonorrhea in women is the infection in the ___
cervix
37
what can a gonorrhea infection in women lead to
pelvic inflammatory disease
38
def? n. gonorrhoeae infection in the skin and joints with septicemia
gonococcemia
39
who is more likely to get gonococcemia
women
40
what is the main symptom of gonococcemia
septic arthritis
41
what is the eye infection of n. gonorrhoeae called
purulent conjuctivitis
42
what is the anal infection of n. gonorrhoeae called
anorectal gonorrhea
43
what is the throat infection of n. gonorrhoeae called
pharyngitis
44
where are the n. meningtidis epidemic
developing countries
45
where is the meningitis belt
africa
46
how is n. meningitidis spread
respiratory droplets by prolonged close contact
47
what is the likely disease? child with fever and vomiting with neck stiffness
meningitis
48
what is the likely disease? skin lesion is meningeal signs
meningococcemia
49
if n. meningitidis gets into the respiratory tract what does it cause
pneumonia
50
how is neisseria diagnosed in the lab (3)
gram stain, PCR, and culture
51
if someone has a asymptotic neisseria infection is a gram stain a good way to diagnosis
no
52
is there a vaccine for n. gonorhoeae
no
53
is there a vaccine for n. meningitidis? if so who
yes 2 only for teens and elderly.