A 16 yrs old female reports to her physician for evaluation of her sore throat. She is ill for the last one week with fatigue and a bed-ridden for the last 3 days. She has no significant medical history, takes no medications and no history of allergy. She is ill and tired. Examination of her pharynx shows her tonsils to be markedly enlarged, almost touching in the midline. They are erythematous and covered with white exudate so. She has prominent Cervical adenopathy which is mildly tender. CVS: NAD.The abdomen is soft, non tender & without palpable Organomegaly.

Physician prescribes her Amoxicillin and after 2 days her mother told physician that. Her daughter has red rash from head to toe. What is the most likely diagnosis in this patient? Epstein-Barr virus infection. Streptococcal Pharyngitis. Diphtheria. Thrush.