The U.K. Food Standards Agency says to avoid norovirus, don’t eat oysters raw.

They, however, use a lot more words.

“Controls before and after commercial harvesting provide good protection against harmful bacteria, but it can be difficult to remove viruses from live shellfish. Thorough cooking will destroy these viruses but many shellfish are eaten raw or only lightly cooked so may still contain viruses when eaten. The FSA and the shellfish industry are continuing to work together to improve methods for removing viruses from live shellfish.”