Final answer:
In this case, it would be appropriate to cover for MRSA.
Step-by-step explanation:
In this case, it would be appropriate to cover for MRSA. MRSA, or Methicillin-resistant Staphylococcus aureus, is a type of bacteria that is resistant to many common antibiotics. It can cause serious skin infections, such as abscesses, and is commonly acquired in healthcare settings. Since the patient recently visited the States and presents with an abscess on his foot, it is possible that he could have acquired MRSA. Therefore, it would be prudent to cover for MRSA in this case.