But the swabs picked up enough other kinds of bacteria to convince you to wipe down these germy surfaces:
Airport drinking fountain button — Consider covering the button with a facial tissue or using hand sanitizer immediately afterward.
Overhead air vent. After wiping down your tray table, give the overhead air vent some attention. Passengers are constantly reaching up to adjust the air flow and temperature. Those things get filthy.
Lavatory flush button. While it may surprise you that this wasn’t the germiest place of all, it still deserves attention. Wipe it down, and use hand sanitizer afterward.
Seatbelt buckle. Everyone touches the seatbelt buckle several times during a flight, so it makes sense that it picks up bacteria.
Bathroom stall lock. Ditto for the lavatory lock. Every time you touch one, you need to wash your hands or use the sanitizer.
SOURCE: SUZANNE ROWAN KELLEHER, TRIP SAVVY