Illness associated with seafood.

Seafood is a common vehicle for the transmission of infections and intoxications. The main concerns in the UK are scombroid fish poisoning, viral infections (associated with bivalve molluscs) and bacterial infections (associated with crustaceans). Paralytic shellfish poisoning (PSP) and red whelk poisoning occur sporadically, and ciguatera has started to appear associated with imported fish. The appearance in coastal waters of marine algae associated with diarrheic shellfish poisoning (DSP) has increased the likelihood of outbreaks of this toxic syndrome. The dinoflagellates causing neurotoxic shellfish poisoning and amnesic shellfish poisoning have not been detected in UK fishing waters but the fluctuating distribution of algal populations makes their appearance a possibility. The Food Hygiene Laboratory and the Torry research station of the Ministry of Agriculture, Fisheries and Food provide a reference service for scombrotoxin, ciguatera, DSP, PSP and red whelk poisoning in the UK.