Scientific discovery is often a messy affair. It’s sometimes intentional, sometimes accidental, sometimes cluttered with error, and always complicated. The ultimate value of scientific observations may not be recognized for many years until the discovery emerges to shed new insight on old problems and become etched in the scientific canon. Such is the story of the conquest of meningitis, a devastating infection of the brain that is usually fatal if not treated.
It’s beautiful, our English language — fluid and expressive, colorful and lively. And it’s changeable. New words appear all the time. Consider “selfie” (a noun), “problematical” (an adjective), and “Google” (a noun that turned into verbs.) Now we have two more: “anti-vax” and “anti-vaxxer.”