The thing about antibiotics is that they tend to be sourced from nature, even if indirectly. This means that bugs have already encountered their enemy, and have developed resistance to them, long ago.
With few new wonder drugs in the pipeline, some doctors are warning of a postantibiotic age, in which simple infections will become untreatable again.
Most antibiotics are based on chemicals used by bacteria or fungi to fight other bacteria, and researchers have speculated that antibiotic resistance must have coevolved with these compounds millions of years ago. Some scientists even claimed to have cultured ancient resistant bacteria from frozen Siberian soil in the lab…
Ulitmately the age of resistance is immaterial – solving the problem is tantamount.