Table 1.
Presenting clinical and laboratory features of patients with babesiosis
| Signs and symptoms | N = 128 n (%) |
|---|---|
| Fatigue | 109 (85.2) |
| Fever* | 105 (82.0) |
| Myalgia or arthralgia | 85 (66.4) |
| Chills | 80 (62.5) |
| Nausea or vomiting | 43 (33.6) |
| Cough or shortness of breath | 43 (33.6) |
| Anorexia | 42(32.8) |
| Headache | 40 (31.2) |
| Night sweats | 39 (30.5) |
| Lightheadedness or dizziness | 38 (29.7) |
| Rash | 26 (20.3) |
| Abdominal pain | 21(16.4) |
| Diarrhea | 20 (15.6) |
| Hepatosplenomegaly | 6 (4.7) |
| Laboratory studies (n)† | Median (Minimum–Maximum) |
| Hemoglobin (g/dL) (113) | 12.2 (3.4–16.2) |
| WBC (×103/μL) (113) | 5.5 (1.6–19.7) |
| Platelet count (×103/μL) (113) | 68 (3–703) |
| CRP (mg/dL) (40) | 10.3 (0.5–45.3) |
| ESR (mm/hour) (20) | 40 (7–117) |
| Procalcitonin (ng/mL) (12) | 1.72 (0.16–46.48) |
| Sodium (mmol/L) (105) | 134 (120–145) |
| Creatinine (mg/dL) (104) | 1.1 (0.58–7.6) |
| ALP (U/L) (95) | 88 (29–344) |
| ALT (U/L) (98) | 45 (12–299) |
| AST (U/L) (101) | 57 (16–702) |
| Total bilirubin (mg/dL) (95) | 1.3 (0.3–18.4) |
| Albumin (g/dL) (96) | 3.1 (1.6–4.6) |
ALP = alkaline phosphatase; ALT = alanine aminotransferase; AST = aspartate aminotransferase; CRP = C-reactive protein; ESR = erythrocyte sedimentation rate; WBC = white blood cell.
*
Documented temperature > 100.4 °F at home or in clinic or fever reported by the physician.
†
Laboratory studies were not available for all patients.