Guidance

Controls of fish and shellfish diseases in England and Wales

Reduce the risk of disease and find out where listed diseases have been confirmed in England and Wales

From:
Department for Environment, Food & Rural Affairs, Centre for Environment, Fisheries and Aquaculture Science and Environment Agency
Published
16 May 2014
Last updated
10 July 2025 — See all updates

Applies to England and Wales

Disease status of fish, shellfish and crustacea in England and Wales

Great Britain has a high health status for fish, mollusc, and crustacean diseases. The listed diseases are in Commission Regulation (EC) 1251/2008 as amended by the Animals, Aquatic Animal Health, Invasive Alien Species, Plant Propagating Material and Seeds (Amendment) (EU Exit) Regulations 2020 and in Annex 1A and Schedule 1 of The Aquatic Animal Health (England and Wales) Regulations 2009.

For the disease status for England and Wales or the latest reported confirmed outbreaks in England and Wales.

Listed fish and shellfish diseases

You must contact the Fish Health Inspectorate (FHI) immediately if you know or suspect fish or shellfish:

  • are infected with a listed disease
  • are affected by an increased mortality

Reduce the spread of disease in fish and shellfish

You can help control the spread of disease if you:

  • follow rules for imports
  • perform regular health monitoring to spot disease early
  • contain outbreaks as quickly as possible
  • use good husbandry practice
  • follow rules when moving fish
  • put in place and follow a biosecurity measures plan. Information on Biosecurity Measures Plans, their importance, and why they are a requirement of Authorisation. Use this page to access standardised BMP modules. Biosecurity Measure Plans - Information and Templates - GOV.UK (www.gov.uk)
  • It is a condition of authorisation that mortalities must be recorded as agreed and stated in your approved Biosecurity Measures Plan (BMP). Mortalities can be recorded in a preferred format, but it must include the date, number of mortalities, species affected, zone (if your farm is divided into zones) and cause. Acceptable formats include daily diaries, spreadsheets, biosecurity logbooks. An example of an acceptable mortality log that can be downloaded and used can be found here: Mortality_Record_Sheet_V1.0.pdf (publishing.service.gov.uk)

Control areas for notifiable disease outbreaks

If a listed disease is confirmed, FHI places controls to limit the spread of disease (these are known as Confirmed Designation Notices) and where required will take steps to eradicate the disease.

If your fish or shellfish are in an area under a control areas you must:

  • follow all conditions issued by FHI
  • get written permission from the FHI to move fish and/or shellfish and equipment (allow at least 5 working days)

2025

Fish

Areas with controls in place to limit the spread of koi herpesvirus disease (KHV):

Halfpenny Green Vineyard Pools, Stourbridge, West Midlands - 11 June 2025

PDF, 251 KB, 5 pages

Creeting Lakes, Stowmarket, Suffolk - 01 July 2025

PDF, 166 KB, 4 pages

Fleets Dam, Barnsley, South Yorkshire - 04 July 2025

PDF, 177 KB, 4 pages

North View Lakes, Spalding, Lincolnshire - 09 July 2025

PDF, 194 KB, 2 pages

Martham Pits, Great Yarmouth, Norfolk - 10 July 2025

PDF, 167 KB, 4 pages

AMTS Fisheries, Newport Pagnell, Buckinghamshire - 10 July 2025

PDF, 167 KB, 4 pages

Shellfish

You can use an interactive map to view shellfish disease controls across Great Britain.

Alternatively below are individual maps of areas under our control for each disease:

Bonamia ostreae

Oyster herpesvirus

Marteilia refringens

Contacts

Email: fhi@cefas.gov.uk

Telephone: 01305 206700

Monday to Thursday - 9am to 5pm, Friday 9am to 4:30 pm

Fish Health Inspectorate

Barrack Road

The Nothe

Weymouth

Dorset

DT4 8UB

Environment Agency

PO Box 544

Rotherham
Yorkshire
S60 1BY

Email enquiries@environment-agency.gov.uk

Monday to Friday, 8am to 6pm 0370 8506 506

From outside the UK +44 1709 389 201

Updates to this page

Published 16 May 2014
Last updated 10 July 2025 show all updates

  1. 2 new disease outbreaks listed for 2025

  2. A new disease outbreak listed for 2025

  3. Added third CD notice under 2025 for KHV

  4. Second CD Notice added under KHV section for 2025

  5. New disease listed and published for 2025

  6. Annual up-date, text amended from 2024 to 2025, and BKD section removed

  7. All Confirmed Designations for KHV have been lifted.

  8. A Confirmed Designation has been removed.

  9. A confirmed designation has been listed.

  10. A new disease outbreak now listed

  11. A confirmed designation has been listed.

  12. A new disease outbreak now listed.

  13. A new disease outbreak has now been listed

  14. A confirmed designation has been listed.

  15. A confirmed designation has been listed.

  16. A confirmed designation has been listed.

  17. A confirmed designation has been listed.

  18. A confirmed designation has been listed.

  19. A confirmed designation has been listed.

  20. A new confirmed designation has been listed.

  21. A new confirmed designation has been listed.

  22. A new confirmed designation has been listed.

  23. A confirmed designation has been lifted.

  24. Added new confirmed designation for BKD.

  25. Updated CD06.2015 v2 attachment to accessible format.

  26. Deleted legacy listings

  27. Removed expired attachment.

  28. Previous versions of BMP templates removed

  29. A confirmed designation has been lifted.

  30. A confirmed designation has been lifted.

  31. Three Confirmed Designations have been lifted.

  32. A confirmed designation has been listed.

  33. A confirmed designation has been listed. An existing confirmed designation has been lifted.

  34. A confirmed designation has been lifted.

  35. A confirmed designation has been lifted.

  36. A confirmed designation has been lifted.

  37. A new confirmed designation has been listed.

  38. A new confirmed designation has been listed.

  39. A new confirmed designation has been listed.

  40. A confirmed designation has been lifted.

  41. A confirmed designation has been listed and a broken link has been fixed.

  42. Three confirmed designations have been lifted.

  43. Two confirmed designations have been listed.

  44. A confirmed designation has been listed.

  45. A new confirmed designation has been listed.

  46. A confirmed designation has been lifted.

  47. A confirmed designation has been listed.

  48. A confirmed designation has been lifted.

  49. Contact email address updated.

  50. 1 disease designation removed, and 1 new disease designation listed.

  51. A confirmed designation has been lifted.

  52. A confirmed designation has been lifted.

  53. A new confirmed designation has been listed.

  54. A new confirmed designation has been listed.

  55. A new confirmed designation has been listed.

  56. Two confirmed designations have been lifted and a new confirmed designation has been listed.

  57. A new confirmed designation has been listed.

  58. A confirmed designation has been added.

  59. A new confirmed designation has been listed.

  60. A confirmed designation has been lifted and a new one has been added.

  61. A new confirmed designation listed and fixed two broken links.

  62. New Notice of Confirmed Designation listed.

  63. Disease controls lifted.

  64. Added new disease outbreak.

  65. A confirmed designation has been lifted.

  66. A confirmed designation has been lifted.

  67. A confirmed designation has been lifted.

  68. A confirmed designation has been lifted.

  69. A new disease outbreak listed.

  70. A number of confirmed designations have been lifted.

  71. A controlled disease has been lifted.

  72. A disease outbreak lifted.

  73. A new disease outbreak listed.

  74. A new disease outbreak listed.

  75. A new disease outbreak listed.

  76. A new disease outbreak listed.

  77. New confirmed outbreak at swan lake added to the list.

  78. A new disease outbreak has now been listed.

  79. A new disease outbreak has now been listed.

  80. New KHV outbreak included to the list.

  81. Three confirmed cases of KHV added to the list.

  82. Two confirmed designations now revoked, and removed from the 2022 listing.

  83. All 2021 KHV disease outbreaks revoked.

  84. 2 new disease outbreaks listed.

  85. A new disease outbreak listed.

  86. A new disease outbreak listed.

  87. A new disease outbreak has now been published for 2022

  88. KHV controls have been lifted at: Tylers Common – EW009-B-335 CD03.2020 – Churchmere Pool - EW086-C-296 CD04.2020 - Brookfield Fisheries - EW105-W-114 CD05.2020 – Waterloo Farm Leisure – EW041-D-369 CD06.2020 – Ringles Reservoir – EW056-G-374 CD07.2020 – Swan Farm Fishery (formally Harpers Hill Fishery) – EW105-Q-108 CD08.2020 - Paradise Fisheries - EW080-T-957 CD09.2020 – Eden Fishery – EW105-T-111 CD10.2020 - Castle Ashby Fishery Lakes - EW042-W-012 CD11.2020 - Kimber View Pools List updated.

  89. A new disease outbreak listed - CD22.2021

  90. A new disease outbreak listed CD21.2021

  91. A new disease outbreak listed - CD20.2021

  92. New KHV outbreak added to the list - Springwood Fisheries, Derbyshire - 1 October 2021

  93. New outbreak confirmed at Soham By - Pass Lake, Cambridgeshire on the 1 October 2021 and added to the list.

  94. New outbreak at - Little John Lakes, Nottinghamshire - 29 September 2021 included in the list.

  95. A new disease outbreak now listed CD16.2021

  96. Confirmed disease outbreak list updated.

  97. CD14.2021 now published

  98. A new disease outbreak published CD13.2021

  99. KHV confirmed list updated with Bennion Pools.

  100. CD02.2021 now removed - disinfection now complete.

  101. Added Theydon Bois Valley Lakes, 16th September

  102. A new disease outbreak listed

  103. CD08.2021 & CD09.2021 now listed

  104. CD07.2021 now added to 2021 listing

  105. List updated with new KHV outbreak at Hartley Fishery.

  106. Added Willow Garth Fisheries, South Yorkshire - 29 July 2021

  107. CD04.2021 now listed

  108. New outbreak's CD02.2021 and CD03.2021 now listed

  109. CD01.2021 now revoked following completition of a cull and disinfection

  110. A new confirmed designation for 2021 now listed

  111. Controls lifted on 2019 KHV confirmed sites due to no occurrence of an outbreak of KHV disease while under controls.

  112. One Confirmed Designation Updated, and one new designation listed under Oyster herpesvirus

  113. A new confirmed designation published CD11.2020

  114. Two new confirmed designations listed and CD08.2020 amended

  115. A new confirmed designation listed CD08.2020

  116. A new confirmed designation listed CD07.2020

  117. 2 new confirmed designation listed

  118. CD04.2020 map up-dated

  119. New outbreak of KHV added to the 2020 list

  120. List updated with the confrimed outbreak of KHV at Churchmere.

  121. List updated with a new confirmed outbreak of KHV at Tylers Common Fishery, Brentwood, Essex - 3 July 2020.

  122. 2020 status updated

  123. A new outbreak for 2020 to list

  124. Controls now lifted for KHV disease outbreaks, list updated to reflect this change.

  125. A new outbreak listed

  126. A new outbreak listed

  127. A new outbreak to publish

  128. Confirmed disease outbreak at a new location - list updated.

  129. A new outbreak listed

  130. A new outbreak posted

  131. Added Sivyers Lake, Middlesex - 13 September

  132. Added JCB Lakes - Rocester, Staffordshire - 30 August

  133. Listed updated with confrimed disease outbreak.

  134. Updated list with new confrimed disease outbreak.

  135. Added Alders Farm Fishery - Milton Keynes, Buckinghamshire - 12 August

  136. Added Newt Pond, Haverhill, Suffolk

  137. Added Theydon Bois Valley Lakes, Essex

  138. Added Ash Ponds, Somerset

  139. KHV disease controls have been applied at: Orsett Reservoir, Greys, Essex – 24 July

  140. Added new outbreak Mescar Fishery, Liverpool, Merseyside – 22 July

  141. Updated the page to include the disease status of england wales page.

  142. CD02/2019 now lifted following Disinfection and a fallow period

  143. CD01/2019 now lifted following a full disinfection of the site and Fallowing period

  144. A newer revised document is now available

  145. Removed controls lifted.

  146. Update list with new outbreak.

  147. list updated with missed outbreak from 2016 that is still inplace.

  148. Included the list for a new outbreak for 2019.

  149. List updated

  150. New outbreak to include in the list.

  151. List updated

  152. List is updated with a new outbreak

  153. New outbreak

  154. List updated with a new outbreak

  155. List updated with a new outbreak

  156. List updated with a new confrimed outbreak

  157. List updated with a new confrimed outbreak

  158. Updated the list with a new outbreak

  159. List updated

  160. The list has been updated with a new outbreak

  161. List updated with a new CD

  162. Listed updated with a new putbreak confirmed

  163. List updated with new confirmed outbreaks of KHV

  164. List updated with confrimed outbreak of KHV

  165. List updated with a new outbreak

  166. Updated the list with a new updated outbreak

  167. Updated document

  168. List updated with new outbreak for 2018

  169. List for new outbreaks updated

  170. Removed Swallows

  171. New outbreak to add to the list

  172. Updated the outbreak list.

  173. Updated the list of new outbreaks for 2018

  174. CD04 included to the list of outbreaks for 2018

  175. Three new KHV outbreak attachments added for 2018

  176. Confrimed Designations from 2009, 2010, 2013, 2014 and some of the sites in 2016. They list has been removed from this page and has been moved to the press release page 'Outbreaks of Koi herpesvirus disease' and added to the list of finished outbreaks. And the CD for Manderson Trust Lakes from 2017 attachment has been included.

  177. Added Cleverley Mare, Essex

  178. Added Boating Lake, Northamptonshire

  179. Added White Shots Reservoir, Essex and The Cunneries, Lancashire

  180. Added Hampstead Heath Ponds, London

  181. Added Lea Farm Lakes, Berkshire

  182. Removed The Jungle, Derbyshire

  183. Added Windsor View Lakes, Berkshire

  184. Added Danson Park, Kent; The Jungle, Derbyshire and Frogmore Fishery, Hertfordshire

  185. Added Cleveley Bridge Fishery Complex, Lancashire

  186. Added Sam Hosticks Fisheries, East Yorkshire

  187. Added Willows Farm Fishery, Hertfordshire Removed Porton Ventures, Wiltshire

  188. Added Tyersal Hall Fishery, West Yorkshire

  189. Added Newlake, Humberside

  190. Added Bannister House Fishery, Lancashire

  191. Added Porton Ventures UK Ltd

  192. Added Meadows Fishery and Manor Park Fishery, Staffordshire

  193. Added Mansfield Lake, Kent

  194. Added designation notice for Risbey Park Fisheries, Beverley

  195. Added The Lakeside, Surrey

  196. Added East Sussed: Swanborough Fishing Lake

  197. Added details for SVC at Arden Lakes, Warwickshire

  198. Removed confirmed designations for: Gorsty Hall Fishing Lakes (Cheshire), Coopers Arms Lake and Weston Moat Fishery (Derbyshire), Frant Lakes (East Sussex), Morehall Fishery (South Yorkshire), Tin Mill Dam (South Yorkshire), Henstead Fishing Lakes (Suffolk), Crossways Business Park (Kent), Barford Lakes (Norfolk), and Willinghurst Fisheries (Surrey).

  199. Added KHV disease confirmed designation for Lodge Farm Fisheries, South Yorkshire.

  200. Added KHV disease confirmed designation for Curborough Fishery, Staffordshire

  201. Added KHV disease confirmed designation for Coppice Lane Pools, Staffordshire

  202. Added KHV disease confirmed designation for The Hunstrete Fishery, Avon

  203. Added KHV disease confirmed designation for Knightsland Farm Lake, Essex

  204. Added KHV disease confirmed designation for Melton Ponds, Norfolk

  205. Added KHV disease confirmed designation for Ash Grove Lake, Derbyshire

  206. Added KHV disease confirmed designation for Kiverton Farm Fisheries, South Yorkshire

  207. Added KHV disease confirmed designation for Five House Farm Reservoir, Hertfordshire

  208. Added a revised oyster herpesvirus confirmed designation which covers Kent and Essex.

  209. Added KHV disease confirmed designation for Thorpe Lea Fishery, Surrey

  210. Added KHV disease confirmed designation for Fields Farm Fishery, Cheshire

  211. Added KHV disease confirmed designation for Portland Fishing Lakes, Nottinghamshire

  212. Added KHV disease confirmed designation for Jacobs Water, Nottinghamshire

  213. Added KHV disease confirmed designation for Bells Mill Fisheries, West Midlands

  214. Added designation for Manea Pit, Cambridgeshire

  215. Added confirmation note for Frisby Water Park, Leicestershire

  216. Added designation note for Packington Somers Fishery

  217. Added the confirmation for Cromwell Lake, Cambridgeshire

  218. Added confirmation details for Ferens Lake, East Yorkshire

  219. Added KHV disease confirmed designations for Mallory Park Fishery, Leicestershire, and Hayfield Fishery, South Yorkshire

  220. Added KHV confirmed designation for Heron Pond, Nottinghamshire

  221. Added KHV confirmed designation for Corner House Farm Lake, Staffordshire

  222. Updated all confirmed designations for Oyster herpesvirus and Bonamia ostreae with a new condition.

  223. Added KHV disease confirmed designation for Fleetwood Reservoir, Lancashire

  224. Add KHV disease confirmed designations for Aston Park, South Yorkshire, and The Barns, Cornwall

  225. Added KHV disease confirmed designation for Albert Park Lake, North Yorkshire

  226. Added KHV disease confirmed designation for Bierley Woods Waters, West Yorkshire

  227. Added KHV confirmed designation for The Glebe Lakes, Leicestershire

  228. Removed KHV confirmed designation for Maidenhead Aquatics, Greater London

  229. Added KHV confirmed designations for Greater London and Lincolnshire

  230. CD03/2016 added

  231. CD02/2016

  232. CD01/2016 - site no longer under any official disease controls

  233. New KHV confirmed designation: Shuttleworth College Fish Farm, Bedfordshire

  234. Confirmed designations for KHV removed on Whitevane Pond, Jeagor Farm, Boat Shed Pool, Ferens Lake, Brocket Hall, Noak Hill Fishery, and The Duckery

  235. Added confirmed designation for Oyster herpesvirus at River Teign, Devon

  236. Revised Bonamia ostreae confirmed designations

  237. Added extension to Oyster Herpesvirus Confirmed Designation in Kent

  238. Added KHV disease confirmed designation for Ellis Lake Fishery, Essex. Added conditions to the confirmed designation for Marteilia.

  239. Added KHV disease confirmed designations for Lake Ross, Woodlands Fishery, and Bourne Farm Pond in Lincolnshire

  240. Added KHV disease confirmed designation for Thornborough Pond, Northumberland

  241. Added KHV confirmed designation for Washing Pool, Worcestershire

  242. Amended Oyster herpesvirus confirmed designation in Kent

  243. Added KHV confirmed designation for Railway Lakes, Cambridgeshire

  244. New KHV outbreak confirmed in West Yorkshire

  245. Ruddy Pond Lakes confirmed designation added.

  246. Added KHV designation for Morgans & Woodstock Ponds, Gwent

  247. Added confirmed designation for KHV at Bankend Fisheries, South Yorkshire

  248. Updated Oyster Herpesvirus confirmed designations for Poole Harbour, Dorset, and Whitstable Bay, Kent

  249. Removed River Crouch, Blackwater and Colne confirmed designation and replaced it with a single designation which also includes the River Roach.

  250. Removed KHV confirmed designations for Burton Farm Fisheries, Church Pond, Kingsdown Road Flash and Canvey Lake

  251. Removed confirmed designation for Abbey Waters, Norfolk

  252. Removed confirmed designations for Bradshaw Hall, Risby Park, Cuckoo Mere and Bee Fold Fishery.

  253. Removed confirmed designation for Aldercar Lane Fishery Lakes, Nottinghamshire, and Alcott Farm Fishery, Worcestershire

  254. Added new confirmed designation for KHV in Staffordshire

  255. Added confirmed designation for KHV in Wiltshire

  256. Added Wellow Dam KHV confirmed designation

  257. Updated Trinity Waters confirmed designation

  258. Added KHV confirmed designation

  259. Added two KHV confirmed designations for Essex

  260. Confirmed Designation added for Haddon Lakes, Cambridgeshire.

  261. New 'notice of confirmed designation' inserted under the Shellfish/Oyster Herpesvirus heading for the River Crouch.

  262. Added KHV confirmed designation

  263. Added KHV confirmed designation

  264. Added 3 KHV confirmed designations

  265. Added KHV confirmed designation

  266. Added confirmed designation for KHV

  267. Added KHV confirmed designation

  268. Added KHV confirmed designation

  269. Added Bonehill Mill Fishery Confirmed KHV Designation

  270. Confirmed designation added

  271. Added confirmed designation notice and map

  272. First published.

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