# Commission Decision of 28 April 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 (notified under document number C(2008) 1589) (Text with EEA relevance) (2008/426/EC), Division: Laboratory criteria

Extent: E+W+S+N.I.

Laboratory criteria for case confirmation
At least one of the following three:
Isolation of Legionella spp. from respiratory secretions or any normally sterile site
Detection of Legionella pneumophila antigen in urine
Legionella pneumophila serogroup 1 specific antibody response
Laboratory criteria for a probable case
At least one of the following four:
Detection of Legionella pneumophila antigen in respiratory secretions or lung tissue e.g. by DFA staining using monoclonal-antibody derived reagents
Detection of Legionella spp. nucleic acid in a clinical specimen
Legionella pneumophila non-serogroup 1 or other Legionella spp. specific antibody response
L. pneumophila serogroup 1, other serogroups or other Legionella species: single high titre in specific serum antibody

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Source: https://www.legislation.gov.uk/eudn/2008/426/annex/division/LEGIONNAIRES/division/2 (the official version)
Page: https://openlegislation.uk/eu-decision-2008-426/annex/division-LEGIONNAIRES/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.