I’m interested in seeing an answer to this question as well. I believe that it is criminal for a person to get on an air plane knowing that they have H1N1, that it is contagious and that it could potentially be hazardous to other. With that being said I think it would be nearly impossible for someone to prove that person a infected person b with H1N1 during the time of their flight. Even it one could prove with complete certainty that person a infected person b with H1N1 it then must be determine if person a was aware of their illness.