Using synthetic biology techniques, researchers have discovered that bacteria respond to antibiotics very differently — exactly opposite, in fact — inside the body than on a petri dish, suggesting that some of our current assumptions about antibiotics may be incorrect

See the source article by following the link below:
Using synthetic biology techniques, researchers have discovered that bacteria respond to antibiotics very differently — exactly opposite, in fact — inside the body than on a petri dish, suggesting that some of our current assumptions about antibiotics may be incorrect