A patient develops an infection of methicillin-resistant Staphylococcus aureus. Which of the following drug cannot be used to treat the infection:: (A) Vancomycin., (B) Cotrimoxazole., (C) Cefaclor., (D) Ciprofloxacin.
Answer is C. Cefaclor is a second generation cephalosporin and is not active against MRSA.