No, I do not know if Mealy Bugs infect people.
However, since "this" has happened to me, I think just about anything is possible and especially since I have learned and also believe in the aspect of phermones which Marc Neumann spoke about in his TV appearance via telephone on God's Learning Channel (GLC). He also has info on it at his site:
http://morgellons-disease-research.org/morgellons
Phermones are the chemical given off which attracts one thing to another. Here is a Bing search link on Phermones:
phermones - Bing
I got to reading about the mealy bug at:
Mealy Bug Plagues Bt Cotton in India and Pakistan
which I had gotten to from a post here at MDR regarding an article about GMO Eucalyptus oil which is located at:
The Institute of Science In Society
Much f the reading brought to mind things I have seen.
Kritters; I have a "NO PLANTS" rule in my home. I'm fearful of any plant bugs and phermones which I may be giving off and EVERY plany we have had in our house gets mold on the ground or potting soil.