If it's not the flu, you might be sick because of this virus

A runny nose, cough, sore throat, breathing problems, fever, headache, diarrhea: If you came down with these symptoms in the middle of winter, you'd probably assume it's the flu and take to your bed immediately. Think again. Another family of viruses, known as adenoviruses, often mimic the common seasonal sickness. Though they are similar, there are differences between the two.