Centrifugal Ultrafiltration Method for Rapid Concentration ...
Detection of Legionella pneumophila antigen in urine by enzyme immunoassay (EIA) or by immunochromatographic testing (ICT) has proven rapid, sensitive, and specific for diagnosing legionellosis (2, 3, 5, 6).Although it requires added processing time, the use of concentrated urine (CU) obtained by selective ultrafiltration significantly improves the sensitivity of antigen detection.