Thanks for sharing. That is nasty but I am sure if they took lettuce or anything that is handled by other people and did cultures on them they would show the same type of bacteria showing up. It's because people are stupid and careless and don't wash their hands!!!
Think how nasty door handles or an esculator handle is. I think this is just one study they are showing and they happened to culture lemons since lemons are handled by people and people have all kinds of nasty germs on their hands. The same type of bacteria is everywhere since people don't realize the importance of washing hands. That is the mode of transmission for germs.
Okay, I love this type of stuff since I work in Infection Control. I have been showing everyone this video.
Oh and everyone, please wash your hands!!! LOL