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Friday, 2 December 2011
Legionella pneumophila urinary antigen subtyping using monoclonal antibodies as a tool for epidemiological investigations
Abstract Legionnaires’ disease is diagnosed predominantly by urinary antigen detection, and patient isolates are rarely available. The lipopolysaccharide (LPS) epitope pattern of isolates detected by monoclonal antibodies is an accepted marker for the phenotyping of L. pneumophila serogroup 1 strains into monoclonal subgroups. L. pneumophila LPS is the dominant antigen in patients’ urinary specimens. By using commercially available microtiter wells coated with rabbit anti-Legionella serogroup 1 IgG as the catching antibody, LPS components in urine specimens were bound and detected separately by corresponding monoclonal antibodies of the Dresden Panel. The subtyping of LPS on urinary antigen molecules by using enzyme-linked immunosorbent assay (ELISA) allows deducing of ...
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