# Commission Decision of 30 April 2009 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(2009) 3517) (Text with EEA relevance) (2009/363/EC), Annex

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

The following wording is inserted in the Annex to Decision 2002/253/EC:
‘NOVEL INFLUENZA VIRUS A(H1N1) (THE SO-CALLED SWINE INFLUENZA VIRUS A(H1N1) AND MEXICAN INFLUENZA VIRUS)
Clinical criteria
Any person with one of the following three:
fever > 38 °C AND signs and symptoms of acute respiratory infection,
pneumonia (severe respiratory illness),
death from an unexplained acute respiratory illness.
Laboratory criteria
At least one of the following tests:
RT-PCR,
viral culture (requiring BSL 3 facilities),
four-fold rise in novel influenza virus A(H1N1) specific neutralising antibodies (implies the need for paired sera, from acute phase illness and then at convalescent stage 10-14 days later minimum).
Epidemiological criteria
At least one of the following three in the seven days before disease onset:
a person who was a close contact to a confirmed case of novel influenza A(H1N1) virus infection while the case was ill,
a person who has travelled to an area where sustained human-to-human transmission of novel influenza A(H1N1) is documented,
a person working in a laboratory where samples of the novel influenza A(H1N1) virus are tested.
Case classification
A.
Case under investigation
Any person meeting the clinical and epidemiological criteria.
B.
Probable case
Any person meeting the clinical AND epidemiological criteria AND with a laboratory result showing positive influenza A infection of an unsubtypable type.
C.
Confirmed case
Any person meeting the laboratory criteria for confirmation.’.

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Source: https://www.legislation.gov.uk/eudn/2009/363/annex (the official version)
Page: https://openlegislation.uk/eu-decision-2009-363/annex
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.