Hi, My wife, brother and daughter recently traveled on a domestic flight and my brother was a at large graduation. We came down with symptoms with in a day or to of each other with fever up to 103F. shaking chills then sweats. There is a moderate headache associated that is the entire head and even light touching of the hair is very uncomfortable. There is loss of appetite and energy. No sore throat or running nose other than exposure to seasonal allergens. Neck and back pain is mild to moderate, but more than normal. This started Monday and finally it looks like the symptoms have improved a little, hard to tell, but Tylenol and Advil due help substantially. We ate some raw oysters, but no one really has any GI symptoms.