ARSD and legionellosis: Thus, the European Working Group for Legionella Infections (EWGLI) has suggested that a combination of several biomarkers, including flaA, pilE, asd, mip, mompS, proA, and neuA, should be used to effectively identify Lg. pneumophila (Fry et al., 2000; Gaia et al., 2005; Ratzow et al., 2007).