New blood test for viral infections shows promise


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New blood test for viral infections shows promise


Date: 10/06/2015

"New test uses a single drop of blood to reveal entire history of viral infections," The Guardian reports.

Every time you are infected by a virus, your immune system produces specific types of antibodies in response. These antibodies remain in your body long after the infection has gone. The new test, called VirScan, is able to assess all these antibodies, building up a detailed immune "history" of viral infections.

Researchers looked at how well the test performed on blood samples from more than 500 people from North and South America, Africa and Asia.

The test correctly identified most of the people with known infections – though there were cases of both false negatives (saying an infection was not present even though it was) and false positives (wrongly diagnosing infection when there was none).

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Source: NHS

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