Problem 1: A wound culture is received by a technologist. He plates it and incubates it overnight. On the blood plate, grey non-hemolytic colonies and moderate dry non-hemolytic colonies were seen. The Gram Stain showed gram positive cocci and gram-positive rods respectively. What is a follow up test for both? What are the two possible organisms based on the morphology?
Problem 2: What way is Corynebacterium diphtheriae similar with Staphylococcus aureus? How is it different?