spigelia anthelmia (unii: wyt05213ge) (spigelia anthelmia - unii:wyt05213ge) spigelia anthelmia: 2 [hp_x]
Not all people who are infected with a norovirus will develop symptoms. If symptoms of a norovirus infection do occur, the illness tends to begin suddenly. Common norovirus symptoms include: 1  Nausea. 2  Vomiting. 3  Watery diarrhea. 4  Some stomach cramping. 5  Dehydration.
Noroviruses are a group of viruses that cause the âstomach flu,â or gastroenteritis (GAS-tro-en-ter-I-tis), in people. The âstomach fluâ is NOT related to the flu (or influenza), which is a respiratory illness caused by a different virus.ometimes people additionally have a low-grade fever, chills, headache, muscle aches, and a general sense of tiredness. The illness often begins suddenly, and the infected person may feel very sick. Symptoms usually begin 24-48 hours after exposure to the virus, but can appear as early as 12 hours. Return to Top.