Traveling can lead to increased risk of catching a cold, with worn-out travelers exposing each other to potential illnesses. And one of the most common spots for disease transmission? Aboard an airplane, warns the University of Arizona's Chuck Gerba.

We spoke with Gerba—a microbiologist and expert in "fomites," or inanimate objects that are capable of spreading disease—about some of the most alarming hot spots on a plane, and the measures travelers can take to protect themselves. Download this infographic to learn about both the obvious (the seatback pocket) and less obvious (the armrest of an aisle seat) locations where germs on planes are rampant.

Download the Infographic