Wed, Sep 03, 2014 - Page 7 News List

Japanese researchers offer new 30-minute Ebola test


Japanese researchers yesterday said they had developed a new method to detect the presence of the Ebola virus in 30 minutes, with technology that could allow doctors to quickly diagnose an infection.

Professor Jiro Yasuda and his team at Nagasaki University say their process is also cheaper than the system currently in use in west Africa, where the virus has already killed more than 1,500 people.

“The new method is simpler than the current one and can be used in countries where expensive testing equipment is not available,” Yasuda said by telephone.

“We have yet to receive any questions or requests, but we are pleased to offer the system, which is ready to go,” he said.

Yasuda said the team had developed what he called a “primer,” which amplifies only those genes specific to the Ebola virus found in a blood sample or other bodily fluid.

Using existing techniques, ribonucleic acid — biological molecules used in the coding of genes — is extracted from any viruses present in a blood sample.

This is then used to synthesize the viral DNA, which can be mixed with the primers and then heated to between 60oC and 65oC.

If Ebola is present, DNA specific to the virus is amplified in 30 minutes due to the action of the primers.

The byproducts from the process cause the liquid to become cloudy, providing visual confirmation, Yasuda said.

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