Scientists working for the US military have designed a new Covid-19 test that could potentially identify carriers before they become infectious and spread the disease, the Guardian has learned.
In what could be a significant breakthrough, project coordinators hope the blood-based test will be able to detect the virus’s presence as early as 24 hours after infection – before people show symptoms and several days before a carrier is considered capable of spreading it to other people. That is also around four days before current tests can detect the virus.
The test has emerged from a project set up by the US military’s Defense Advanced Research Projects Agency (Darpa) aimed at rapid diagnosis of germ or chemical warfare poisoning. It was hurriedly repurposed when the pandemic broke out and the new test is expected to be put forward for emergency use approval (EUA) by the US Food and Drug Administration (FDA) within a week.
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