 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| n |
Lab
conformation based on following
|
|
|
criteria:
|
|
|
|
– |
isolating West
Nile virus from or demonstrating viral antigen
|
|
or genomic
sequences in tissue, blood, CSF, or other body
|
|
|
fluid
|
|
|
|
– |
demonstrating
IgM antibody to West Nile virus in CSF by
|
|
|
ELISA
|
|
|
|
– |
demonstrating
4-fold serial change in plaque reduction
|
|
|
neutralization
test (PRNT) antibody to West Nile virus in
|
|
|
paired, acute
& convalescent serum samples
|
|
|
|
– |
demonstrating
both West Nile virus-specific IgM & IgG
|
|
|
antibody in
single serum specimen using ELISA & PRNT
|
|