Fascinating Fact #2: Vaccine

Did you know that vaccine derives from the Latin for cow? This is because the first vaccine was derived from "cowpox" to immunize humans against smallpox. Humans were treated with the cow (vacca) antibodies and they didn't get smallpox*.

Fascinating!

Vaccine, however, has nothing to do with vacation, which I am now on.

(Nota bene: not all fascinating facts will be about bacteria, but bacteria have been occupying my mind lately due to what I thought was the return of a hated sinus infection.)

*(Funny I originally typed "small box" there. Funny, that.)

Fascinating fact #1

Do you know how sulfa drugs (one of the first antibiotics) work? Well apparently certain cavorting wee beasties (also known as bacteria) need a vitamin that is similar in chemical construction to the sulfa drugs in order to survive. When sulfa is applied, the wee beasties think it is Thanksgiving and gorge themselves on the pseudo-food. As it turns out, bad luck for them, the sulfa compounds do not provide anything for the reproductive cycle and the bacteria end up childless and condemned to a lonely life in the bacterial equivalent of the old folks home and the grim reaper (in this case white blood cells), takes care of the rest. Therefore, no offspring: no infection.

Fascinating!