A plankton may cause paralytic (shellfish poisoning).Logical formLearned from2 sentences. Bays may remain closed to (shellfish harvest).Logical formLearned from2 sentences. (Shellfish poisoning) can be fatal.Logical formLearned from2 sentences. Shellfish may monitor programs.Logical formLearned from2 sentences. A (tide shellfish ban) may be imposed.Logical formLearned from2 sentences. Shellfish may feed on (eel grass).Logical formLearned from2 sentences. Shellfish may be contaminated by a (tide toxin).Logical formLearned from2 sentences. (State health officials) may advise against eating shellfish.Logical formLearned from2 sentences. Shellfish may cause severe illness.Logical formLearned from2 sentences. Shellfish may ingest algae.Logical formLearned from2 sentences. Illness can be from shellfish.Logical formLearned from2 sentences. Shellfish can be regional.Logical formLearned from2 sentences. Intoxications can be from shellfish.Logical formLearned from2 sentences. Impact can be on shellfish.Logical formLearned from2 sentences. A diet may consist of shellfish.Logical formLearned from2 sentences.