A recent study published by Travelmath shows that the toilet is actually the most hygienic place out of a plane. Passengers must take account of this new information, not get sick during the trip.
Researchers took samples of bacteria in several places in four aircraft and five airports, and then analyzed the results to determine which are the dirtiest places. Thus, the toilet flush button that contains only 265 CFU (colony forming units of bacteria) on 2.5 cm square, writes The Independent. Surprisingly, the dirtiest place of the aircraft is on the seatback folding table, which has eight times as many bacteria as a toilet: 2,155 CFU per 2.5 cm square. Here is the explanation: the toilets are among the cleanest places in the plane, that are washed and disinfected after each flight. Instead, these tables are completely neglected between flights. Button Air Conditioning overhead passenger seat belt and contain about the same number of bacteria as toilet flushing button, the study shows.