Endelig er den faktor, der hedder foder, ikke uden relevans for ovennævnte udvikling. Foderet kontrolleres slet ikke, og det ser ud til at have bidraget til udbredelsen af mund- og klovsyge.
Finally, and this is not unrelated to what I have just said, there is the feed factor - with no controls whatsoever on feedingstuffs - which appears to have helped foot and mouth disease to spread.