Volume 22, Number 9—September 2016
CME ACTIVITY - Research
Use of Testing for West Nile Virus and Other Arboviruses
Jakapat Vanichanan, Lucrecia Salazar, Susan H. Wootton, Elizabeth Aguilera, Melissa N. Garcia, Kristy O. Murray, and Rodrigo Hasbun
Table 4
West Nile virus testing and results for patients with meningitis and encephalitis, Houston, Texas, USA
| Variable | Patients, no. (%) |
|---|---|
| Testing requested, n = 281 | |
| Serum IgM and IgG | 168 (60) |
| Only cerebrospinal fluid IgM | 44 (16) |
| Only serum IgM | 40 (14) |
| Serum IgM and cerebrospinal fluid IgM | 17 (6) |
| Serum WNV IgM, IgG and cerebrospinal fluid IgM | 4 (1) |
| Only cerebrospinal fluid, by reverse transcription PCR | 3 (1)* |
| Only serum IgG | 2 (1) |
| Unknown |
3 (1) |
| Results for patients with acute West Nile virus infection, n = 32 | |
| Serum IgM + / serum IgG – | 12 (38) |
| Serum IgM + / serum IgG + | 8 (25) |
| Serum IgM + / cerebrospinal fluid IgM + | 4 (12) |
| Only cerebrospinal fluid IgM + | 4 (12) |
| Only serum IgM + | 3 (9) |
| Serum IgM + / cerebrospinal fluid IgM – | 1 (3) |
*All 3 samples had negative test results.
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Page updated: August 16, 2016
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