European Legionnaires’ Disease Surveillance Network (ELDSNet)
ELDSNet, which is coordinated by ECDC, carries out surveillance of Legionnaires’ disease (the pneumonic form of legionellosis), involving all EU Member States, Iceland and Norway. It aims to identify relevant public health risks, enhance prevention of cases and monitor epidemiological trends.

Legionellosis case definitions
The case definitions are provided in Commission decision of 28/IV/2008 amending Decision 2002/253/EC laying down case definitions for reporting communicable diseases to the Community network under Decision No 2119/98/EC of the European Parliament and of the Council). See all case definitions