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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 ShuComments to Author 
Author affiliations: Centers for Disease Control, Taipei, Taiwan (S.-H. Peng, S.-L. Yang, H.-F. Chen, P.-Y. Shu); Chang Gung Memorial Hospital–Kaohsiung Medical Center, Kaohsiung, Taiwan (Y.-N. Ho)

Main Article

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.

Main Article

Page created: October 15, 2019
Page updated: October 15, 2019
Page reviewed: October 15, 2019
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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