Could my dad have the norovirus?

If he does:: With norovirus you go from feeling fine to suddenly feeling horrible with watery diarrhea, vomiting, nausea, stomach pain , fever, headache and body aches. Symptoms tend to last from 3-7 days. It is very important to stay hydrated, drink clear liquids, sips if necessary, to keep up with stool losses. Try not to eat anything but bananas, apples, constipating foods after the first day on clears.