The difference in clinical characteristics between acute Q fever and scrub typhus in southern Taiwan

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Abstract

Objective: To identify the differences in clinical characteristics between acute Q fever and scrub typhus in southern Taiwan. Methods: A prospective observational study was conducted in which serological tests for acute Q fever and scrub typhus were performed simultaneously regardless of which disease was suspected clinically. From April 2004 to December 2007, 80 and 40 cases of serologically confirmed acute Q fever and scrub typhus, respectively, were identified and included in the study for comparison. Results: By univariate analysis, being male (p < 0.001) and having an alanine aminotransferase (ALT) >88 U/l (p = 0.015) were more common in acute Q fever, whereas residence or travel in a mountainous region or offshore island of Taiwan (p < 0.001), skin rash (p < 0.001), eschar (p < 0.001), lymphadenopathy (p = 0.04), leukocytosis (p = 0.002), and pulmonary involvement on chest X-ray (p = 0.003) were more common in scrub typhus. In the multivariate analysis, being male (odds ratio (OR) 10.883, 95% confidence interval (CI) 2.079-56.441, p = 0.005) was an independent characteristic of acute Q fever, while residence or travel in a mountainous region or offshore island (OR 0.073, 95% CI 0.019-0.275, p < 0.001) and skin rash (OR 0.152, 95% CI 0.024-0.945, p = 0.043) were independent characteristics of scrub typhus. The response to doxycycline treatment was not different. Conclusions: In southern Taiwan, sex, area of residence, travel history, and physical examination are important in the differentiation of acute Q fever from scrub typhus. © 2008 International Society for Infectious Diseases.

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APA

Lai, C. H., Huang, C. K., Weng, H. C., Chung, H. C., Liang, S. H., Lin, J. N., … Lin, H. H. (2009). The difference in clinical characteristics between acute Q fever and scrub typhus in southern Taiwan. International Journal of Infectious Diseases, 13(3), 387–393. https://doi.org/10.1016/j.ijid.2008.07.020

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