‘Breath test’ shows promise for diagnosing fungal pneumonia

Many different microbes can cause pneumonia, and treatment may be delayed or off target if doctors cannot tell which bug is the culprit. A novel approach -- analyzing a patient's breath for key chemical compounds made by the infecting microbe -- may help detect invasive aspergillosis, a fungal infection that is a leading cause of mortality in patients with compromised immune systems, according to a proof-of-concept study.