The International Air Transport Association is the airline trade association that represents the world's airlines—over 290 airlines globally. It tracks this information.
From the perspective of tracking and public health, we are not public health experts, of course. We are aviation experts. However, what we can say is that approximately 1% of COVID importation at the air border has been attributed to air travel. This was the catalyst for some of the decision-making on April 1 about removing the predeparture testing.