Table 2.
Clinical features at the first contact
| N | % | |
|---|---|---|
| Symptoms | ||
| Fever from the onset to the first contact | 52 | 94.5 |
| Malaise | 22 | 40.0 |
| Gastrointestinal symptoms* | 21 | 38.2 |
| Headache | 9 | 16.4 |
| Arthralgia | 7 | 12.7 |
| Sore throat and cough | 6 | 10.9 |
| Myalgia | 3 | 5.5 |
| Aware of tick bite† | 6 | 10.9 |
| Signs | ||
| SBP ≤ 90 mm of Hg | 1‡ | 2.0 |
| Impaired consciousness§ | 3‖ | 5.6 |
| Erythema | 51 | 92.7 |
| Eschar | 34 | 61.8 |
SBP = systolic blood pressure. Note: patient total = 55.
*
Gastrointestinal symptoms include anorexia, abdominal pain, vomiting, and nausea.
†
Patients were aware that they had been bitten by a tick.
‡
N = 50.
§
One case could not be diagnosed because the patient had dementia.
‖
N = 54.