CNS Viral Flashcards
(22 cards)
arthropod-borne viruses
arboviruses
poliovirus type
picorna virus
arbovirus characteristics (3)
togaviridiae
ssRNA
small, enveloped
causative organism of St. Louis encephalitis, West Nile, Dengue
flaviviridae
most prevalent flaviviridiae
West Nile
neonatal meningitis causes (3)
S. agalacticae (GBS)
E. coli
Listeria
S. agalacticae appearance
G+
gray/white colonies w/ narrow B-zone hemolysis
S. agalacticiae virulence factors (4)
capsular polysaccharide
hyaluronidase
collagenase
hemolysin
what is CAMP factor and what has it
accentuation of hemolysis due to interaction w/ staph B-lysin
S. agalactiae
non-motile G- coccobacillus that causes meningitis
H. influenzae
H. flu meningitis virulence factor
LOS
G+ motile coccobacillus, non-fastidious
Listeria monocytogenes
meningitis organism w/ “tumbling” motility
Listeria
agar for N. meningitidis
Thayer-Martin
fastidious, G- kidney bean shaped diplococcus
causing meningitis
N. meningitidis
meningitis w/ petechial lesions
N. meningitidis
Lipoprotein-like surface component (3 things)
L. monocytogenes
antiphagocytic
induction of complement-dependent hemolytic Abs
serogroups of N. meningitidies that are encapsulated (5)
A B C Y W135
Listeriolysin O (3)
disrupts the phagolysosome membrane- free to replicate intracellularly
inhibits antigen processing
induces apoptosis
N. meningitidis diagnosis (3)
chocolate agar
Thayer-Martin agar
detecting of capsular polysaccharide
G+ bacillus, tennis racket appearance
C. tetani
fxn of tetanospasmin
disruption of central motor control, autonomic fxn, the NMJ
