A 7 year old boy is taken to the pediatrician by his parents…

A 7 year old boy is taken to the pediatrician by his parents due to intense left ear pain. The parents reveal that their child has never been vaccinated due to religious objections.    On examination, the outer ear is tender to the touch and the middle ear is red and inflamed.  An ear culture grows out Haemophilus influenza.  What is the most likely diagnosis

A 27 year old woman, who has just returned to the US from Ce…

A 27 year old woman, who has just returned to the US from Central Africa following a stint in the Peace Corps, presents to her doctor with complaints of high cyclical fever, chills, and fatigue. She is diagnosed with Malaria and started on antimalarial medications.  The cyclical nature of the symptoms is mediated by which if the following