If it is flu, even with Tamiflu administered in the first 72 hours, it still must run its course. It only shortens the duration of the symptoms. So even in the best situation you are talking 5-7 days.
Novovirus is awful. Similar in symptoms to the flu but it wipes out digestive system. Nausea, vomiting, diarrhea, low grade fever and headache. Plus, like the flu, it is highly contagious. Last fall, within 48 hours, my mother in law, wife, daughter and myself all came down with it. It takes at least 48-72 to run its course. Then you feel wiped out for days afterwards
If Kelby or LT are out with flu or novovirus, the last thing you want is them around the team. It can spread like wildfire.