21.   Symptoms of E coli infection include diarrhea, abdominal cramps, blood in stool and low-grade fever.

22.   Symptoms from eating tainted oysters include diarrhea, abdominal cramps, nausea, fever vomiting and headache, health officials said.

23.   Symptoms from consuming foods tainted with Vibrio parahaemolyticus include diarrhea, abdominal cramps, nausea, fever, vomiting and headache, health officials said.

24.   Symptoms include severe diarrhea and abdominal cramps.

25.   Symptoms of a reaction include hives, abdominal cramps, vomiting, diarrhea, swelling of the mouth or throat or difficulty breathing.

26.   The bacteria produce a toxin that causes hemorrhagic colitis, earmarked by severe abdominal cramps and watery diarrhea that becomes bloody.

27.   The greatest discomfort is likely to be a day or so of abdominal cramps until the residual carbon dioxide is absorbed into the bloodstream.

28.   The illness is caused by a bacterium called Vibrio parahaemolyticus, which normally causes diarrhea and abdominal cramps, officials said.

29.   The infection may cause severe abdominal cramps and bloody diarrhea.

30.   They have suffered symptoms including bloody diarrhea, abdominal cramps and nausea.