Figure 1. Apotome imaging, 7 days after establishment of L. pneumophila Lens A) MG, B) AG and C) CG, in biofilm pre-formed with four non-Legionella strains during 15 days from water networks.

L. pneumophila expressing Ds-Red marker appears in red and non-Legionella bacteria, marked using Draq5 stain, in green. Pictures are representative of 3 independent experiments.