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21 Cards in this Set

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  • Back
  • 3rd side (hint)
family for HAV
Picornavirus
+ss RNA, naked
A-
B- Hepadena
C- Flavi
D- (delta)
E- unclassified toga
family for HBV
Hepadena
ONLY DNA
ico, enveloped, ds, circular
A- Picorna
B-
C- Flavi
D- (delta)
E- unclassified toga
family for HCV
Flavi
+ss RNA, enveloped, linear
A- picorna
B- Hepadena
C-
D- (delta)
E- unclassified toga
family for HDV
"delta"
+ss RNA, linear
A- picorna
B- Hepadena
C- Flavi
D-
E- unclassified toga
family for HEV
unclassified toga
+ss RNA, linear
A- picorna
B- Hepadena
C- Flavi
D- (delta)
E-
presentation of HAV
fecal/oral transmission
no chronic or carrier
presentation of HBV
sexual or parenteral
chronic & oncogenic
presentation of HCV
sexual or parenteral
chronic & oncogenic
presentation of HDV
requires HBV to replicate
parenteral transmission
presentation of HEV
fecal/oral
dangerous if pregnant
Implication of positive HBsAg
surface antigen
active viremia
implication of positive HBcAg
core antigen
found on capsid
implication of HBeAg
envelope antigen
implication of HBsAB
protective after virus gone
(vacinated)
implication of HBcAB
not protective
confirm infection during window period
Implication of HBeAB
antibody to envelope
low risk of infectivity
Isosporiasis
chronic intestinal infection in AIDs
genes in HIV (& gene product)
GAG- viral core proteins
Env- viral envelop prots
Pol- reverse transcriptase
proteins in HIV
reverse transcriptase
p18 & p24
mechanism of infection in HIV
infects MPs via CCR5 (receptor)
MP acts as reservoir
decreased IL-1 secretion, less Ag presentation
high mutation rate
enters T's via CXCR4 binding to gp120 on virus (gp41 is anchor)
budding kills T cell
decrease response to Ag, less IL-2 & IFN gamma
initial response in HIV infection
robust CD8 response initially