TABLE 1.
Serologic diagnosis of WN virus infection in hospitalized patients by clinical diagnosis
| Clinical diagnosis | No. of patients tested | WN virus infection, confirmed and presumptive cases
|
||
|---|---|---|---|---|
| WN virus-specific IgM antibodies in CSFa | WN virus-specific antibodies in serumb | Total (%) | ||
| Neurological cases meeting case definition (total) | 257 | 75 | 141 | 216 (84) |
| Meningoencephalitis | 115 | 34 | 67 | 101 (89) |
| Encephalitis | 49 | 23 | 18 | 41 (84) |
| Meningitis | 93 | 18 | 56 | 74 (80) |
| Other clinical diagnoses (total) | 33 | 9 | 11 | 20 (61) |
| Acute fever and headache | 10 | 6 | 2 | 8 (80) |
| Respiratory tract infection | 5 | 5 | 5 (100) | |
| Other acute febrile illness | 18 | 3 | 4 | 7 (39) |
a
With or without serum virus-specific antibodies.
b
IgM and/or IgG, with or without seroconversion.