Current challenges in the diagnosis and management of invasive fungal infections: report from the 15th International Symposium on Infections in the Immunocompromised Host: Thessaloniki, Greece, 22–25 June 2008

New, aggressive forms of immunosuppression and an increasing population of patients at risk provide fertile ground for opportunistic invasive fungal infections (IFIs). Particularly challenging is the changing epidemiology of IFIs: rare pathogens are now more common and resistant strains are emerging among species that are generally considered to be sensitive. Staying one step ahead of this evolving epidemiology is a major task and some 400 delegates, from 44 countries, learned that although there has been considerable progress, more is needed.