I think what we've proposed is a communication strategy, but
we must keep in mind that a proper intervention takes a diagnosis. Therefore, we need some way to communicate so that we can pick the individual up and take him away for diagnosis. Only then can we intervene. As I said, very serious problems would be extremely rare. However, we can deal with them if they come up.
Moreover, if there is a case of tuberculosis, every person who was in contact with the case in an aircraft long enough to risk contracting the disease must be traced and given the necessary care. We are organized for doing this. We have powers that allow us to obtain the names and addresses of all the travellers in the aircraft. We know that every individual onboard the plane does not run the same risk of contagion, but we have the names of all the passengers who were onboard. We will specifically track down those who were close to the infected person and give them chemoprophylaxis if need be.