Hemoglobin, g/L | 124 (118–151) |
Mean corpuscular volume, fL | 89.0 (84.0–98.0)) |
Platelet count, × 109/L | 185 (147–375) |
Leukocyte count, × 109/L | 8.6 (3.1–9.7) |
Absolute neutrophil count, × 109/L | 6.5 (1.2–6.0) |
Lymphocyte count, × 109/L | 0.9 (0.6–3.1) |
Monocyte count, × 109/L | 1.1 (0.2–0.9) |
Cerebrospinal fluid leukocyte count, × 106/L | 31 (0–5) |
Cerebrospinal fluid lymphocytes, % | 89 |
Cerebrospinal fluid glucose, mmol/L | 3.0 (2.2–3.9) |
Cerebrospinal fluid protein, g/L | 1.05 (0.12–0.60) |
Herpes simplex virus nucleic acid test | Negative |
Varicella–zoster virus nucleic acid test | Negative |
Enterovirus nucleic acid test | Negative |
Mumps nucleic acid test | Negative |
Measles nucleic acid test | Negative |
Coxiella burnetii antibody test | Negative |
Rickettsia rickettsii antibody test | Negative |
West Nile virus nucleic acid test, IgM, IgG | Negative, negative, negative |
Cytomegalovirus IgM, IgG | Negative, negative |
Epstein–Barr virus IgM, IgG | Negative, negative |
Bartonella henselae antibody test | Negative |
Borrelia burgdorferi antibody test | Negative |
Treponema pallidum antibody test | Negative |
Powassan virus hemagglutination inhibition test |
Convalescent (day 30) | Positive at 1:160 |
Powassan virus plaque reduction neutralization test |
Initial (day 0) | Positive at 1:320 |
Convalescent (day 8) | Positive at 1:5120 |