<prompt> A 14 year old boy present with headache, fever and cought for 2 days. Sputum is scant and non-purulent and gram stain reveals many whit cells but no organisms. The treatment should be initiated with:CefazolinErythromycinAmikacinTrovafloxacin  <response>: Ref: KDT 6e p729 Diagnosis is atypical pneumonia and DOC is erythromycin. 