The original form of vancomycin is an ideal starting place for developing better antibiotics. The antibiotic has been prescribed by doctors for 60 years, and bacteria are only now developing resistance to it.
…Combined with the previous modifications, this alteration gives vancomycin a 1,000-fold increase in activity, meaning doctors would need to use less of the antibiotic to fight infection.
The discovery makes this version of vancomycin the first antibiotic to have three independent mechanisms of action. “This increases the durability of this antibiotic,” said Boger. “Organisms just can’t simultaneously work to find a way around three independent mechanisms of action. Even if they found a solution to one of those, the organisms would still be killed by the other two.”