My roommate originally though that she had Strep throat , but now believes it is mono. She had pustules on her tonsils 2 days ago but they have disappeared and is very fatigued, she also believes she has a mild fever (no thermometer to confirm), but has been taking ibuprofen for relief. I haven't moved into the apartment yet, but am tomorrow and would like to know if it is likely she is infectious , or should I just take general sanitary precautions. I am a student and cannot afford to miss classes.