Jun 04, 2009 Views: 871
Much has been learnt about the epidemiology
of Legionnaires' disease
since the causative bacterium Legionella
was first identified in 1976. National surveillance systems and research studies were established early, and in recent years improved ascertainment and changes in clinical
methods of diagnosis
have contributed to an upsurge in reported cases in many countries.
Environmental studies continue to identify novel sources of infection, leading to regular revisions of guidelines and regulations. Between 1995 and 2005 over 32,000 cases of Legionnaires' disease and more than 600 outbreaks were reported to the European Working Group for Legionella Infections (EWGLI).
Further reading Joseph and Ricketts (2008) in: Legionella: Molecular Microbiology