# 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: EENT-CONJ: Conjunctivitis

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

Conjunctivitis must meet at least one of the following criteria:
Patient has pathogens cultured from purulent exudate obtained from the conjunctiva or contiguous tissues, such as eyelid, cornea, meibomian glands, or lacrimal glands
Patient has pain or redness of conjunctiva or around eye
AND at least 1 of the following:
WBCs and organisms seen on Gram's stain of exudates
purulent exudates
positive antigen test (for example, ELISA or IF for Chlamydia trachomatis, herpes simplex virus, adenovirus) on exudate or conjunctival scraping
multinucleated giant cells seen on microscopic examination of conjunctival exudate or scrapings
positive viral culture
diagnostic single antibody titre (IgM) or 4-fold increase in paired sera (IgG) for pathogen

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Source: https://www.legislation.gov.uk/eudn/2018/945/annex/II/division/4/division/4.1/division/4.1.6/division/1 (the official version)
Page: https://openlegislation.uk/eu-decision-2018-945/annex-II/division-4/division-4.1/division-4.1.6/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.