OsHV-1 µvar is a virulent viral disease affecting the Pacific oyster, also known as the rock or cupped oyster.
This is the only species of shellfish that is currently known to be susceptible to this virus.
Oyster Herpesvirus Confirmed in Shellfish Fishery
UK - An outbreak of Oyster herpesvirus-1 microvariant (OsHV-1 var) has been confirmed in Pacific oysters (Crassostrea gigas) in the River Roach, Essex.
by Lucy Towers
