Abstract:
:Marburg virus (MARV) causes a severe hemorrhagic fever in humans with a high mortality rate. The rapid and accurate identification of the virus is required to appropriately provide infection control and outbreak management. Here, we developed and evaluated a one-step reverse transcription-loop-mediated isothermal amplification (RT-LAMP) assay for the rapid and simple detection of MARV. By combining two sets of primers specific for the Musoke and Ravn genetic lineages, a multiple RT-LAMP assay detected MARV strains of both lineages, and no cross-reactivity with other hemorrhagic fever viruses (Ebola virus and Lassa virus) was observed. The assay could detect 10(2) copies of the viral RNA per tube within 40 min by real-time monitoring of the turbidities of the reaction mixtures. The assay was further evaluated using viral RNA extracted from clinical specimens collected in the 2005 Marburg hemorrhagic fever outbreak in Angola and yielded positive results for samples containing MARV at greater than 10(4) 50% tissue culture infective doses/ml, exhibiting 78% (14 of 18 samples positive) consistency with the results of a reverse transcription-PCR assay carried out in the field laboratory. The results obtained by both agarose gel electrophoresis and naked-eye judgment indicated that the RT-LAMP assay developed in this study is an effective tool for the molecular detection of MARV. Furthermore, it seems suitable for use for field diagnostics or in laboratories in areas where MARV is endemic.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Kurosaki Y,Grolla A,Fukuma A,Feldmann H,Yasuda Jdoi
10.1128/JCM.01224-09subject
Has Abstractpub_date
2010-07-01 00:00:00pages
2330-6issue
7eissn
0095-1137issn
1098-660Xpii
JCM.01224-09journal_volume
48pub_type
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