confirmed by culture and serotyping and 44 probable serogroup 1
cases identified by Binax® Legionella Urinary Antigen EIA), were
investigated using the two different lateral flow tests, ImmuView®
S. pneumoniae and L. pneumophila Urinary Antigen Test and the
BinaxNOW® Legionella Urinary Antigen Card. All together 74 samples
were positive in the Binax® EIA assay. A total of 88 of the samples
were positive in the ImmuView® assay, and 71 samples were positive
in the BinaxNOW® kit, giving rise to the following sensitivities: the
ImmuView® 88.9%, the Binax® EIA 74.7%, and the BinaxNOW® 71.7%.
It should be mentioned that out of the 71 positive samples in the
BinaxNOW® assay, 18 samples showed a very faint “band”, which
might easily be overlooked (if these were scored negative the sensitivity
would decrease to 53.5%).