Other prime offenders: public mailbox handles, escalator rails, ATM buttons, parking meters and kiosks, crosswalk buttons and vending machines in shopping malls. The testers were having a good ole time looking for animal, vegetable, bacteria, yeast or mold cells that collected on a given surface.
University of Arizona researcher Charles Gerba previously discovered that shopping cart handles are loaded with "fecal matter" and reported that the average workplace has 400 times more bacteria than a toilet. Mmm!
The good news: I don't drive, so no worries about gas pump handles. And since subway car poles aren't on the list, I guess it's okay to keep licking them, huh?