A collection of reagents and other associated materials intended to be used for the qualitative and/or semi-quantitative detection of antigens from one or multiple serogroups of Legionella pneumophila in a clinical specimen within a short period, relative to standard laboratory testing procedures, using an immunochromatographic test (ICT) method. This test is commonly used in the laboratory or in point-of-care analyses for the rapid detection of infection with Legionella pneumophila, the bacteria associated with Legionnaires' disease.