Bacteria Or Virus? New Tests May Identify What's Causing Your Infection, Duke University Study

Duke University researchers are working on an intriguing idea—a blood test to determine whether a respiratory infection is caused by a virus or bacteria.

If it is developed, the test could make prescribing treatment easier and more accurate. Nearly three-fourths of patients with acute respiratory illnesses are prescribed antibiotics even though their infections are usually viral, studies have found. There is no treatment for most viruses.

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