Volume 25, Number 11—November 2019
Research Letter
Human Case of Ehrlichia chaffeensis Infection, Taiwan
Shih-Huan Peng, Su-Lin Yang, Yu-Ni Ho, Hsiang-Fei Chen, and Pei-Yun Shu
Table
Laboratory and diagnostic findings for a human case of Ehrlichia chaffeensis infection, Taiwan*
| Laboratory or diagnostic finding | Patient value or result | Reference value or method |
|---|---|---|
| Leukocytes | 5,800/μL | 3.9–10.6 × 103/μL |
| Red blood cell | 4,950,000/μL | 3.9–5.4 × 106/μL |
| Hemoglobin | 14.3 g/dL | 12–16 g/dL |
| Platelets | 27,000/μL | 150–400 × 103/μL |
| Segment | 82.7% | 42%–74% |
| Lymphocyte | 13% | 25%–56% |
| Creatinine | 1.16 mg/dL | 0.44–1.03 mg/dL |
| Aspartate aminotransferase | 97 U/L | 0–37 U/L |
| Alanine aminotransferase | 71 U/L | 0–40 U/L |
| C-reactive protein | 131.2 mg/L | <5 mg/L |
| Dengue virus | Negative | Rapid test, ELISA, PCR |
| Influenza virus | Negative | Antigen |
| HAV/HBV/HCV | Negative | HAV IgM (ECLIA), HBV HBsAg (ECLIA), HCV Anti-HCV (ECLIA) |
| Leptospira interrogans | Negative | MAT or isolation |
| Coxiella burnetii | Negative | PCR or IFA |
| Orientia tsutsugamushi | Negative | PCR or IFA |
| Rickettsia typhi/R. prowazekii | Negative | PCR or IFA |
| R. rickettsii | Negative | IFA |
| R. conorii | Negative | IFA |
| Anaplasma phagocytophilum | Negative | PCR or IFA |
| Ehrlichia chaffeensis | Positive | PCR or IFA |
*Diagnostic methods based on guidelines on standard operating procedure for laboratory diagnosis provided by Taiwan Centers for Disease Control (https://www.cdc.gov.tw). ECLIA: electrochemiluminescence immunoassay; HAV, hepatitis A virus, HBsAG, hepatitis B surface antigen; HBV, hepatitis B virus, HCV, hepatitis C virus; IFA, immunofluorescence assay; MAT, microscopic agglutination test.
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Page updated: October 15, 2019
Page reviewed: October 15, 2019
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