The study concluded that given the high mortality rate, the
WUH score cannot be used to focus antibiotic therapy since
the specifcity was low (50 to 65%), the application of the WUH
score also could lead to unnecessarily broad coverage. The WUH
score might be used to screen patients for specialized Legionella
testing. If the WUH score were fulflled, the patient could receive
anti-Legionella antibiotics as empiric therapy without Legionella
laboratory testing. But, if the criteria were not fulflled, Legionella
testing could be performed on these patients to cover the 13–22%
of patients who do not have the classical syndrome.