What surface in school has the most germs?

While precise scientific studies comparing *every* surface in a school are rare, the surfaces generally considered to have the highest concentration of germs are door handles and light switches. These are frequently touched by many people throughout the day, without much cleaning. Other contenders include:

* Shared keyboards and computer mice: Especially in computer labs.

* Water fountain buttons: Another high-touch surface in a public area.

* Tabletops in the cafeteria: Shared eating surfaces are obviously prone to contamination.

It's important to note that the *types* of germs will vary depending on the location and time of year.