Norovirus | Symptoms | CDC - Symptoms of norovirus in adults Like 95.73% | 876 votes Views: 139 322 Download Abdominal pain or cramps. Watery or loose diarrhea. Categories: Adult Comments: Add Comment Cancel By Shaktidal - 07:35 Norovirus infection can cause the sudden onset of severe vomiting and However, for some people — especially infants, older adults and. By Nejora - 02:25 Learn about norovirus treatment and prevention. the fluids lost from vomiting and diarrhoea – as well as water, adults could also try fruit juice and soup. By Zujin - 09:17 Typical symptoms include nausea, vomiting (more often in children), watery diarrhea (more often in adults), and stomach cramps. By Tujar - 08:44 Symptoms of norovirus include diarrhea, throwing up, nausea, stomach pain as This can lead to dehydration, especially in young children, older adults, and.