# Commission Implementing Decision (EU) 2018/945 of 22 June 2018 on the communicable diseases and related special health issues to be covered by epidemiological surveillance as well as relevant case definitions (Text with EEA relevance), Division: Laboratory Criteria

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

At least one of the following three:
Isolation of influenza A/H5N1 from a clinical specimen;
Detection of influenza A/H5 nucleic acid in a clinical specimen;
Influenza A/H5 specific antibody response (four-fold or greater rise or single high titre).

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Source: https://www.legislation.gov.uk/eudn/2018/945/annex/II/division/3/division/3.21/division/2 (the official version)
Page: https://openlegislation.uk/eu-decision-2018-945/annex-II/division-3/division-3.21/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.