A Positive PCR Test May Not Mean Positively Sick

PCR-based diagnostic tests are becoming increasingly common in clinical settings because they are much more sensitive and accurate than older tests, and provide results within hours, not days. Yet a study published in Clinical Infectious Diseases shows that half of those who tested positive for respiratory viruses did not report feeling ill. These findings suggest that some test results should be interpreted with caution. Co-first author Dr. Carrie Byington, professor of pediatrics and co-director of the Utah Center for Clinical and Translational Science, talks about the results and how clinicians can use the information to improve patient care. Learn more.