Even minor changes, such as constipation or diarrhea, can indicate ... attention for severe symptoms, such as blood or mucus in stools, intense pain or cramping, or persistent nausea or vomiting.

Tell your healthcare provider about any blood-tinged mucus or other concerning ... with symptoms of diarrhea, fever, and ...

Symptoms range from mild to severe depending on the type of infection and level of exposure, and include stomach cramps, diarrhea, blood or mucus in the feces. A clinical diagnosis is often made.

Other symptoms can include stomach cramping, less frequent ... If you're experiencing diarrhea lasting longer than two or three days, have bloody diarrhea or have a high fever, seek medical ...

The symptoms of norovirus illness usually include nausea, vomiting, diarrhea, and some stomach cramping, department officials said. Sometimes people also have a low-grade fever, chills ...