What should you avoid on airplanes to stay healthy. If it touches the tray throw it away. You share the plane with everyone who came before you and left their mark. Planes are not cleaned between flights.
2018 safest airlines
AirlineRatings.com - the world’s only safety and product rating website has announced its Top 20 safest airlines for 2018 from the 409 it monitors. Some of the airlines include - Emirates.Lufthansa. Qantas and Virgin Atlantic