The formal definition of a bactericidal ("cidal") antibiotic is one for which the minimum bactericidal concentration (MBC) of the drug is fourfold or more above the minimum inhibitory ...

Minimum inhibitory concentrations (MICs) can be very useful in selecting the best antimicrobial agent for a given patient with known culture and susceptibility results. However, to do so ...

In methicillin-resistant Staphylococcus aureus, evolution of bacteriophage resistance causes trade-offs that re-sensitize the bacteriato β-lactam antibiotics.

At concentrations of from four to 32 times the minimal inhibitory concentration, the penicillins also produced globular forms identical to those produced by the cephalosporins. Although it is ...