As with penicillin, only a year passed after this semi-synthetic penicillin was released before methicillin-resistant Staph aureus (MRSA) was reported. Initially, MRSA only appeared in hospitals ...

Any one of those mutations could give your staph infection the capacity to continue replicating, even in the presence of the antibiotic. All it takes is a single mutated S. aureus—one that ...

With frightening speed, certain microbes evolve defenses against every antibiotic we throw at them. Staph aureus is a sobering case in point.