A new test can identify whether viral infections are causing a patient’s respiratory illness by measuring RNA or protein molecules in their cells. Performed with a simple nasal swab, the test could prove to be a quicker, cheaper way to diagnose respiratory viral illnesses than current methods.

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A new test can identify whether viral infections are causing a patient’s respiratory illness by measuring RNA or protein molecules in their cells. Performed with a simple nasal swab, the test could prove to be a quicker, cheaper way to diagnose respiratory viral illnesses than current methods.