Norovirus is a highly contagious virus that causes acute gastroenteritis, leading to symptoms such as vomiting, diarrhea, and stomach cramps. While norovirus primarily affects the digestive system, it can cause additional illness symptoms such as a fever while your body is fighting off the infection. However, fever is not a defining symptom of norovirus and may not occur in every case. Keep reading to learn more about norovirus symptoms and treatment. If you’re feeling ...