It seems to me that the report states that the Czech authorities and the Czech airlines knew, because at that time, even though the flight was in the air, they knew that this gentleman had this serious case of XDR-TB.
Je crois que le rapport indique que les autorités et le transporteur aérien tchèques étaient au courant, même durant le vol, que cet homme souffrait d'un cas grave de XDR-TB.