Accompanying Symptoms. You can usually determine that your aching teeth are related to the flu and sinus rather than dental care by looking out for other symptoms. Sinus toothaches usually come with tenderness in the cheekbone and gums, throbbing headache, fatigue, and a runny nose.nlike a common cold, the flu is caused by an influenza virus that infects the airway tract in the nose and throat. Symptoms of the flu can include fever, weakness, coughing, headache, and achesâsometimes even in the teeth. 1  Things That Make Toothaches Worse. 2  How to Alleviate Tooth Pain Caused by Sinuses.
1 Rotavirus. 2  Symptoms of rotavirus â the leading cause of viral gastroenteritis in infants and young children â usually appear one to three days after exposure. 3  But you're contagious even before you develop symptoms, and up to two weeks after you've recovered.he contagious period â the time during which a sick person can give the illness to others â is slightly different for each virus. 1  Norovirus. 2  With norovirus â the most common cause of viral gastroenteritis in adults and children â you're contagious from the moment you begin to feel ill.
What is the incubation period of the stomach flu (norovirus and others)? How long is a person contagious after having the stomach flu (stomach virus)? (What is the contagious period for norovirus and others?) Answer: A person is still contagious for at least 3 days after symptoms have stopped. A person is contagious starting from the moment they start to feel sick and possibly even a little bit before that. In one study, Noroviruses were detected in the stool 15 hours after the people ingested the norovirus1. Usually symptoms don't start until 24-72 hours after ingestion (but can take longer).