Antibiotic resistance in 1945: Selection, not spite 뿯½ Selection, not spite

A shared drug budget under selection in hospitals, farms and wastewater — stewardship, not a lab manual. In his Nobel lecture Alexander Fleming warned that under-dosing penicillin would educate microbes to resist it. Methicillin-resistant Staphylococcus aureus was reported in 1961, soon after methicillin entered clinics (1959).

In 2019 WHO listed antimicrobial resistance among the top ten global public-health threats. The UK Review on AMR projected up to 10 million deaths a year by 2050 if resistance were left unchecked — a scenario, not a census. Selection happens in hospitals, livestock systems and wastewater; genes move among those compartments.

Stewardship means using the right agent for the right syndrome for an appropriate duration — a clinical judgement, not leftover pills. Antibiotic resistance is selection: drugs kill or stop susceptible cells, and the remainder become the story. Hospitals, farms and wastewater are linked classrooms. Genes ride plasmids between species; that is why stewardship is social, not only personal.