• Sources of community-acquired cases
Lisa Conza, Simona Casati Pagani, Valeria Gaia
Presence of Legionella and Free-Living Amoebae in Composts and Bioaerosols from Composting Facilities. Research Article | published 02 Jul 2013 | PLOS ONE 10.1371/journal.pone.0068244  (free article)
Lisa Conza, Simona Casati and Valeria Gaia. 2013. Detection limits of Legionella pneumophila in environmental samples after co-culture with Acanthamoeba polyphaga. BMC Microbiology 2013, 13:49.
Lisa Conza, Simona Casati, Costanzo Limoni and Valeria Gaia. 2013. Meteorological factors are associated with an increased risk of community-acquired Legionnaires’ disease in Switzerland: an epidemiological study. BMJ Open 2013, 3 (3): e002428.
Casati, S., Conza, L., Bruin, J., and V. Gaia. 2010. Compost facilities as a reservoir ofLegionella pneumophila and Legionella species. Clinical Microbiology and Infection 16(7):945-7.
Casati, S., Gioria-Martinoni, A., and V. Gaia. 2009. Commercial potting soils as an alternative infection source of Legionella pneumophila and other Legionella species in Switzerland. Clinical Microbiology and Infection 15(6): 571-5.
  • Typing
Gaia V, Casati C. 2013. Typage des souches de Legionella spp. en Suisse entre 2000 et 2011. Bulletin OFSP 16/13 p. 253-257.
Ratzow, S., V. Gaia, J. H. Helbig, N. K. Fry, and P. C. Luck. 2007. Addition of neuA, the gene encoding N-acylneuraminate cytidylyl transferase, increases the discriminatory ability of the consensus sequence-based scheme for typing Legionella pneumophila serogroup 1 strains. J Clin Microbiol 45:1965-8.
Gaia, V., N. K. Fry, B. Afshar, P. C. Luck, H. Meugnier, J. Etienne, R. Peduzzi, and T. G. Harrison. 2005. Consensus sequence-based scheme for epidemiological typing of clinical and environmental isolates of Legionella pneumophila. J Clin Microbiol 43:2047-52.
Gaia, V., N. K. Fry, T. G. Harrison, and R. Peduzzi. 2003. Sequence-based typing of Legionella pneumophila serogroup 1 offers the potential for true portability in legionellosis outbreak investigation. J Clin Microbiol 41:2932-9. 
Gaia, V., C. Poloni, and R. Peduzzi. 1994. Epidemiological typing of Legionella pneumophila with ribotyping. Report of two clinical cases. Eur J Epidemiol 10:303-6.

Fry, N. K., J. M. Bangsborg, A. Bergmans, S. Bernander, J. Etienne, L. Franzin, V. Gaia, P. Hasenberger, B. Baladron Jimenez, D. Jonas, D. Lindsay, S. Mentula, A. Papoutsi, M. Struelens, S. A. Uldum, P. Visca, W. Wannet, and T. G. Harrison. 2002.Designation of the European Working Group on Legionella Infection (EWGLI) amplified fragment length polymorphism types of Legionella pneumophila serogroup 1 and results of intercentre proficiency testing Using a standard protocol. Eur J Clin Microbiol Infect Dis 21:722-8.
Fry, N. K., S. Alexiou-Daniel, J. M. Bangsborg, S. Bernander, M. Castellani Pastoris, J. Etienne, B. Forsblom, V. Gaia, J. H. Helbig, D. Lindsay, P. Christian Luck, C. Pelaz, S. A. Uldum, and T. G. Harrison. 1999. A multicenter evaluation of genotypic methods for the epidemiologic typing of Legionella pneumophila serogroup 1: results of a pan-European study. Clin Microbiol Infect 5:462-477.
Valsangiacomo, C., F. Baggi, V. Gaia, T. Balmelli, R. Peduzzi, and J. C. Piffaretti. 1995. Use of amplified fragment length polymorphism in molecular typing of Legionella pneumophila and application to epidemiological studies. J Clin Microbiol 33:1716-9. 
Helbig, J. H., S. Bernander, M. Castellani Pastoris, J. Etienne, V. Gaia, S. Lauwers, D. Lindsay, P. C. Luck, T. Marques, S. Mentula, M. F. Peeters, C. Pelaz, M. Struelens, S. A. Uldum, G. Wewalka, and T. G. Harrison. 2002. Pan-European study on culture-proven Legionnaires' disease: distribution of Legionella pneumophila serogroups and monoclonal subgroups. Eur J Clin Microbiol Infect Dis 21:710-6.