CNS Viral Flashcards Preview

Microbiology I > CNS Viral > Flashcards

Flashcards in CNS Viral Deck (22)
Loading flashcards...
0
Q

arthropod-borne viruses

A

arboviruses

1
Q

poliovirus type

A

picorna virus

2
Q

arbovirus characteristics (3)

A

togaviridiae
ssRNA
small, enveloped

3
Q

causative organism of St. Louis encephalitis, West Nile, Dengue

A

flaviviridae

4
Q

most prevalent flaviviridiae

A

West Nile

5
Q

neonatal meningitis causes (3)

A

S. agalacticae (GBS)
E. coli
Listeria

6
Q

S. agalacticae appearance

A

G+

gray/white colonies w/ narrow B-zone hemolysis

7
Q

S. agalacticiae virulence factors (4)

A

capsular polysaccharide
hyaluronidase
collagenase
hemolysin

8
Q

what is CAMP factor and what has it

A

accentuation of hemolysis due to interaction w/ staph B-lysin
S. agalactiae

9
Q

non-motile G- coccobacillus that causes meningitis

A

H. influenzae

10
Q

H. flu meningitis virulence factor

A

LOS

11
Q

G+ motile coccobacillus, non-fastidious

A

Listeria monocytogenes

12
Q

meningitis organism w/ “tumbling” motility

A

Listeria

13
Q

agar for N. meningitidis

A

Thayer-Martin

14
Q

fastidious, G- kidney bean shaped diplococcus

causing meningitis

A

N. meningitidis

15
Q

meningitis w/ petechial lesions

A

N. meningitidis

16
Q

Lipoprotein-like surface component (3 things)

A

L. monocytogenes
antiphagocytic
induction of complement-dependent hemolytic Abs

17
Q

serogroups of N. meningitidies that are encapsulated (5)

A
A
B
C
Y
W135
18
Q

Listeriolysin O (3)

A

disrupts the phagolysosome membrane- free to replicate intracellularly
inhibits antigen processing
induces apoptosis

19
Q

N. meningitidis diagnosis (3)

A

chocolate agar
Thayer-Martin agar
detecting of capsular polysaccharide

20
Q

G+ bacillus, tennis racket appearance

A

C. tetani

21
Q

fxn of tetanospasmin

A

disruption of central motor control, autonomic fxn, the NMJ