About this condition
A notifiable viral disease primarily affecting salmonids in marine environments.
What is IHN?
IHN spreads rapidly and causes severe losses in salmonids.
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Notifiable fish disease
If you suspect this condition in wild or stocked fish, contact the Environment Agency incident hotline immediately. Do not move fish, stock new fish, or carry out works that could spread disease.
Report Fish Disease or Pollution
If you suspect this condition, see unusual fish behaviour, or witness a pollution incident at your waters, you must contact the Environment Agency immediately. Quick reporting protects your fishery and prevents further fish mortalities.
EA Incident Hotline
0800 80 70 60
24 hours · Free to call
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