Stomach Flu Symptoms 2024 Adults. The most common symptoms of norovirus are diarrhea, vomiting, stomach pain, and nausea. Flu symptoms in adults 2024.

Seek medical attention if you develop diarrhea that doesn’t go away within several days. Dr ngashi ngongo, chief of staff at africa cdc, also told al jazeera that the virus only causes symptoms that last “two to four weeks”.