Legionella Methods Comparison
| Legiolert Ideal for water management plan testing | Spread-plate methods Ideal for outbreak investigations | PCR/qPCR Valuable for quick turn-around screening |
|---|---|---|
| Culture test in a liquid medium | Culture test on a solid medium | Molecular assay |
| Quantification of L. pneumophila | Quantification of Legionella species that are detected | Presence/absence for four Legionella species; quantification available for L. pneumophila |
| Highly sensitive for L. pneumophila | Potential to detect multiple Legionella species, including L. pneumophila | Options to detect L. pneumophila, L. micdadei, L. maceachernii, L. sainthelensis/ cincinnatiensis |
| 7 day confirmed result | 10-14 day confirmed result | Optional same day confirmed result |
| Results in MPN (Most Probable Number) | Results in CFU (Colony Forming Units) | Results in GU (Genomic Units) |
| (All three units results can be directly compared with each other) | ||
| Viable, culturable organisms | Viable, culturable organisms | No viability information available |
| Isolates and serotyping available | Isolates and serotyping available | L. pneumophila serotype 1 identification available |
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