Volume 12, Number 3—March 2006
Dispatch
West Nile Virus–associated Flaccid Paralysis Outcome
Table
Sign/symptom | Acute infection, N = 32, no. (%) | 4-mo followup, N = 27, no. (%) | 1-y followup, N = 22, no. (%) |
---|---|---|---|
Fever (temperature >38°C) | 29 (91) | 0 | 0 |
Nausea (with or without vomiting) | 26 (81) | 0 | 0 |
Headache | 28 (88) | 5 (19) | 3 (11) |
Altered mental status | 16 (50) | 0 | 1 (5) |
Meningismus | 10 (31) | 0 | 0 |
Rash | 4 (13) | 0 | 0 |
WNV-associated neurologic features* | |||
Tremor | 21 (66) | 8 (25) | 9* (41) |
Myoclonus | 15 (47) | 2 (6) | 3* (14) |
Parkinsonism | 8 (25) | 2 (6) | 5* (23) |
Cerebellar ataxia | 3 (9) | 2 (6) | 1 (5)5 |
Limb atrophy | 0 | 17 (53) | 10 (45) |
*An apparent increase in the number of persons with tremor, myoclonus, and parkinsonism between 4 mo and 1 y is reflective of detection of these movement disorders in persons who were initially flaccid/immobile, nonambulatory, or too functionally impaired to assess.
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