Now, before I did my residency, I did a master's degree in public health, and one of the things that they teach you in public health school is that if you're a doctor and you see 100 kids that all drink from the same well, and 98 of them develop diarrhea, you can go ahead and write that prescription for dose after dose after dose of antibiotics, or you can walk over and say, "What the hell is in this well?"
Antes de mi residencia, hice una maestría en salud pública, y una de las cosas que se aprenden en la Escuela de Salud Pública es que, si eres médico y observas a 100 niños beber del mismo pozo y 98 de ellos tienen diarrea, uno puede prescribir sin dudar varias dosis de antibióticos, o puede detenerse a preguntar: "¿Qué demonios hay en ese pozo?"