You are working in a hospital and have two patients with pne…

You are working in a hospital and have two patients with pneumonia. One patient is being treated with erythromycin (a macrolide) and the other is being treated with amphotericin B (a macrolide polyene). What is the mechanism of action for each of these antimicrobial drugs? What can you conclude about the causative agents for these pneumonia patients based on their treatments?