Grammaritis
From Yb Timeline
"It feels to be here."
-Sneezier
Grammaritis is a disease that impedes the infected from speaking with correct grammar. Most of the time it's harmless and passes with a few days, but in some occasions it can permanently root itself inside the host's brain.
A few small meteors in Popstar's solar system seem to produce it, but the Metal Army's hatrid for organic creatures keep the viruses from ever becoming more than a temporary bane for space travelers.