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J Clin Microbiol. 2002 Mar;40(3):753-7.

Species-level identification of orthopoxviruses with an oligonucleotide microchip.

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  • 1Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.


A method for species-specific detection of orthopoxviruses pathogenic for humans and animals is described. The method is based on hybridization of a fluorescently labeled amplified DNA specimen with the oligonucleotide DNA probes immobilized on a microchip (MAGIChip). The probes identify species-specific sites within the crmB gene encoding the viral analogue of tumor necrosis factor receptor, one of the most important determinants of pathogenicity in this genus of viruses. The diagnostic procedure takes 6 h and does not require any sophisticated equipment (a portable fluorescence reader can be used).

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