Antibiotic
항생제
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<speciesfyi-glossary slug="antibiotic"></speciesfyi-glossary>Definition
A substance that kills or inhibits the growth of bacteria, used to treat bacterial infections.
Detailed Explanation
Antibiotics have transformed medicine since penicillin's discovery in 1928, but overuse in medicine and livestock has driven the evolution of antibiotic-resistant bacteria. Resistance genes spread rapidly through bacterial populations via horizontal gene transfer. The WHO lists antibiotic resistance as among the greatest global public health threats. New antibiotic discovery has stagnated while resistance spreads — a crisis requiring both new drug development and stewardship.