# Commission Delegated Regulation (EU) 2020/687 of 17 December 2019 supplementing Regulation (EU) 2016/429 of the European Parliament and the Council, as regards rules for the prevention and control of certain listed diseases (Text with EEA relevance), Division 2: Duration of the control measures in the surveillance zone

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

Category A disease
Minimum periods of surveillance
Infection with Mikrocytos mackini
3 years
Infection with Perkinsus marinus
3 years
Infection with Taura syndrome virus
2 years
Infection with Yellow head syndrome virus
2 years
Epizootic haematopoietic necrosis
2 years
When the period of surveillance has elapsed and there has been no new detection of infection with the relevant category A disease, the measures in the surveillance zone must be lifted as provided for in Article 101 of this Regulation.

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Source: https://www.legislation.gov.uk/eur/2020/687/annex/XV/division/SURVEILLANCE/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2020-687/annex-XV/division-SURVEILLANCE/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.