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Journal of Clinical Microbiology, November 2001, p. 4125-4130, Vol. 39, No. 11
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.11.4125-4130.2001

Development and Evaluation of a Fluorogenic 5' Nuclease Assay To Detect and Differentiate between Ebola Virus Subtypes Zaire and Sudan

Tammy R. Gibb,* David A. Norwood Jr., Neal Woollen, and Erik A. Henchal

Diagnostic Systems Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland 21702-5011

Received 3 April 2001/Returned for modification 12 May 2001/Accepted 19 August 2001

The ability to rapidly recognize Ebola virus infections is critical to quickly limit further spread of the disease. A rapid, sensitive, and specific laboratory diagnostic test is needed to confirm outbreaks of Ebola virus infection and to distinguish it from other diseases that can cause similar clinical symptoms. A one-tube reverse transcription-PCR assay for the identification of Ebola virus subtype Zaire (Ebola Zaire) and Ebola virus subtype Sudan (Ebola Sudan) was developed and evaluated by using the ABI PRISM 7700 sequence detection system. This assay uses one common primer set and two differentially labeled fluorescent probes to simultaneously detect and differentiate these two subtypes of Ebola virus. The sensitivity of the primer set was comparable to that of previously designed primer sets, as determined by limit-of-detection experiments. This assay is unique in its ability to simultaneously detect and differentiate Ebola Zaire and Ebola Sudan. In addition, this assay is compatible with emerging rapid nucleic acid analysis platforms and therefore may prove to be a very useful diagnostic tool for the control and management of future outbreaks.

* Corresponding author. Present address: SBCCOM, building #3150, Edgewood Area, Aberdeen Proving Ground, MD 21010. Phone: (410) 436-7831. Fax: (410) 436-2081. E-mail: Tammy.Gibb{at}SBCCOM.APGEA.ARMY.MIL.

Journal of Clinical Microbiology, November 2001, p. 4125-4130, Vol. 39, No. 11
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.11.4125-4130.2001


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