The airport is more risky than the airplane. In an airplane you are sat next to a fixed number of people and you have top down insertion of clean air, exactly l

The airport is more risky than the airplane. In an airplane you are sat next to a fixed number of people and you have top down insertion of clean air, exactly like in an operating theatre. Meanwhile in the airport you are in a large building with many other people, you might come into contact with 100s of new people from a wide variety of places.