To demonstrate how easily an infection can spread from just one person, Shern-Min Chow infected herself with a pretend virus.

The chemical is specially designed for just such demonstrations and is hard to see in regular light, but glows under a UV light.

In less than an hour, several people s hands were contaminated after having touched an item Chow handled, such as a coffee pot handle or keyboard.

If you d like to try the experiment at home, school or do a similar demonstration at a business try the following links:

Read or Share this story: