Who is associated with the development of the 'magic bullet' concept for antibiotics?

Who is associated with the development of the 'magic bullet' concept for antibiotics?

• A. Louis Pasteur
• B. Paul Ehrlich
• C. Robert Koch
• D. Alexander Fleming

Answer: (B)

The idea being tested is selective toxicity in antimicrobial therapy—the notion that a compound can be designed to target pathogens without harming the host. Paul Ehrlich is the scientist who first articulated and pursued this concept, coining the term “magic bullet.” He imagined a chemical that would bind specifically to a pathogen and kill it while leaving the rest of the body unharmed. This led to the development of Salvarsan (arsphenamine) to treat syphilis, a practical demonstration of targeted chemotherapy and the famous screening effort often described as finding “compound 606.” While others like Pasteur and Koch advanced germ theory and Fleming discovered penicillin, Ehrlich is the one most associated with the magic-bullet idea and the early practice of selective toxicity in antimicrobial drugs.

The idea being tested is selective toxicity in antimicrobial therapy—the notion that a compound can be designed to target pathogens without harming the host. Paul Ehrlich is the scientist who first articulated and pursued this concept, coining the term “magic bullet.” He imagined a chemical that would bind specifically to a pathogen and kill it while leaving the rest of the body unharmed. This led to the development of Salvarsan (arsphenamine) to treat syphilis, a practical demonstration of targeted chemotherapy and the famous screening effort often described as finding “compound 606.” While others like Pasteur and Koch advanced germ theory and Fleming discovered penicillin, Ehrlich is the one most associated with the magic-bullet idea and the early practice of selective toxicity in antimicrobial drugs.