Detection of All Known Filovirus Species by Reverse Transcription-polymerase Chain Reaction Using a Primer Set Specific for the Viral Nucleoprotein Gene

Overview

Journal J Virol Methods

Specialty Microbiology

Date 2010 Nov 25

PMID 21093485

Citations 20

Authors

Hirohito Ogawa

Hiroko Miyamoto

Hideki Ebihara

Kimihito Ito

Shigeru Morikawa

Heinz Feldmann

Ayato Takada

Affiliations

Soon will be listed here.

Abstract

The filoviruses, Marburg virus (MARV) and Ebola virus (EBOV), are causative agents of severe hemorrhagic fever with high mortality rates in humans and non-human primates. Sporadic outbreaks of filovirus infection have occurred in Central Africa and parts of Asia. Identification of the natural reservoir animals that are unknown yet and epidemiological investigations are current challenges to forestall outbreaks of filovirus diseases. The filovirus species identified currently include one in the MARV group and five in the EBOV group, with large genetic variations found among the species. Therefore, it has been difficult to develop a single sensitive assay to detect all filovirus species, which would advance laboratory diagnosis greatly in endemic areas. In this study, a highly sensitive universal RT-PCR assay targeting the nucleoprotein (NP) gene of filoviruses was developed. The genomic RNAs of all known MARV and EBOV species were detected by using an NP-specific primer set. In addition, this RT-PCR procedure was verified further for its application to detect viral RNAs in tissue samples of animals infected experimentally and blood specimens of infected patients. This assay will be a useful method for diagnostics and epidemiological studies of filovirus infections.

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