A diabetic individual has developed cellulitis caused by Methicillin-resistant Staphylococcus aureus (MRSA) as confirmed by antibiotic susceptibility tests. Which of the following antibiotics would NOT be suitable for treatment?

Explanation

MRSA strains are resistant to beta-lactam antibiotics such as imipenem. Effective treatment options include vancomycin, teicoplanin, linezolid, and daptomycin, which are active against MRSA. Therefore, imipenem is inappropriate for MRSA infections.