Diarrheal shellfish poisoning (DSP) is one of the four recognised symptom types of shellfish poisoning, the others being paralytic shellfish poisoning, neurologic shellfish poisoning and amnesic shellfish poisoning. There are four syndromes called shellfish poisoning, which share some common features and are primarily associated with bivalve molluscs (such as mussels, clams, oysters and scallops). ... 4 distinct shellfish-poisoning syndromes have been identified: Paralytic shellfish poisoning (PSP) Neurologic shellfish poisoning (NSP) Diarrheal shellfish poisoning (DSP) Amnestic shellfish poisoning (ASP) All 4 syndromes share some common features and primarily are associated with bivalve mollusks (eg, mussels, clams, oysters, scallops). ... Amnesic shellfish poisoning (ASP) is one of the four recognised syndromes of shellfish poisoning (the others being neurotoxic shellfish poisoning [1], diarrhetic shellfish poisoning [2] and paralytic shellfish poisoning). ...

As the name suggests, this syndrome manifests itself as diarrhoea, although nausea, vomiting and cramps are all common too Most diarrhoea cases however, regardless of cause, seem to have the exact same set of symptoms, as diarrhoea is usually the body's effort to avoid absorbing water in the intestines, to flush out any micro-organisms that may have been ingested, and this causes the other symptoms as unfortunate side-effects of the body's efforts to cleanse itself. Diarrhoea is the correct way to spell the word Diarrhoea. ... For the Beck song, see Nausea (song). ... The intestine is the portion of the alimentary canal extending from the stomach to the anus and, in humans and other mammals, consists of two segments, the small intestine and the large intestine. ... A microorganism or microbe is an organism that is so small that it is microscopic (invisible to the naked eye). ...

DSP and its symptoms usually set in within about half an hour of ingesting infected shellfish, and last for about one day. As no life-threatening symptoms generally emerge from this, no fatalities from DSP have ever been recorded.