Figure 5.

Clinical outcome in controls with cytomegalovirus (CMV)–specific polymerase chain reaction findings of >500 IU/mL in bronchoalveolar lavage (BAL) fluid (1 patient had idiopathic pneumonia syndrome [IPS], and 11 patients had non-CMV pneumonia). A, Viral loads of >500 IU/mL are shown by solid markers. The dotted line represents the threshold. B, The likelihood of subsequent development of CMV disease in subset. “Unlikely” denotes clinical presentation consistent with other causes, CMV-negative blood specimen; “possible” denotes CMV detected in blood specimen, treated with antiviral agents, other possible causes present; “probable” denotes CMV detected in blood specimen, no other causes of pneumonia in subsequent follow-up evaluations, clinical course consistent with viral pneumonia; and “proven” denotes subsequent CMV pneumonia diagnosed by standard criteria (eg, at autopsy).