On the other hand, if the culture results show MSSA infection, vancomycin should be changed to beta-lactam combined with a beta-lactamase inhibitor such as amoxicillin/clavulanic acid or first-generation cefalosporins [36,37,38]. The gene discussed is LACTB; the disease is Methicillin-Susceptible Staphylococcus Aureus Infection.