These days everyone's banging on about friendly bacteria! The Kissing Disease, or mononucleosis, is caused by the Epstein - Barr virus. More than 95% of the population is infected! Most people get over the virus in a couple of weeks though it can take a couple of years to kiss it goodbye completely!

These 4-inch plush dolls look like the real microbes that can give you grief but are about a million times actual size!