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New Virus Detected Using Genome Sequencer Technology

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454 Life Sciences has announced that researchers at Columbia University and Victorian Infectious Disease Reference Laboratory have discovered a new virus that was responsible for the deaths of three transplant recipients.

The research explains how the previously unknown virus, which is related to lymphocytic choreomeningitis virus, was found using the 454 Sequencing™ technology and was published online in New England Journal of Medicine.

The study entitled, “Discovery and implication of a novel arenavirus in a cluster of fatal transplant associated disease,” describes how identification of this virus might enable improvements in screening that will enhance the safety of transplantation.

Following the deaths of all three recipients of organs from a single donor, their illnesses were investigated by unbiased high throughput 454 Sequencing to reveal the presence of a previously undiscovered old world arenavirus. The virus, similar to lymphocytic choreomeningitis virus and Kodoko virus, was subsequently confirmed in multiple clinical samples by PCR, viral culture and immunohistochemistry. Results of the study implicate this new arenavirus as a human pathogen and support the use of high throughput sequencing in pathogen discovery.

"Within a few days we had clues to the identity of the virus responsible for transplant deaths" said Ian Lipkin, MD, lead author of the study and John Snow Professor of Epidemiology and Professor of Neurology and Pathology at Columbia University and director of the Center for Infection and Immunity at the Mailman School of Public Health.

"We made this investigation highest priority. Our success reflected the tireless efforts of an extraordinary team of investigators representing academia, public health and industry, who brought all of their expertise and technology to bear on an important clinical problem.”

“We are very satisfied to see that the Genome Sequencer System could quickly identify new viruses where other methods failed,” said Manfred Baier, Head of Roche Applied Science. “This is another example for the potential of the 454 sequencing technology in various application areas. The identification of the virus is an important first step in a further enhancing the safety of transplantations.”

“454 Sequencing enables researchers to quickly and affordably identify the organisms present in a complex sample without any prior knowledge of the pathogens present” said Michael Egholm, PhD, a co-author on the study and Vice President of Research and Development at 454 Life Sciences. “This metagenomics approach to pathogen identification may facilitate a more rapid response when the “next SARS” emerges sometimes in the future.”