IMMUNIZED • E-FREE TRANSLATION.COM • Definition of Immunized

... sample alien strong drinks, ceremony often required that they break bread (or its other world equivalent) on strange planets. And so science served expediency and now a Trader bound for any Galactic banquet was immunized, as far as was medically possible, against the evil consequences of consuming food not originally intended for Terran stomachs. One of the results being that Traders acquired a far flung reputation of possessing bird-like appetites—since it was always ...

— Plague Ship • Andre Norton