nazi its own its forecast later on friday well joining me now from singapore to discuss this is andrew herdman he's director general of the association of asia pacific airlines gets a have you with us on al-jazeera just say how many other airlines do you think are vulnerable to co-ops like flight be in the u.k. . well this problem started in asia and china originated in china and are spread rapidly to other markets in asia when i asked her did their original estimate a couple of weeks ago it was based on the assumption it would be more us contained within asia and that $30000000000.00 revenue impact was almost entirely going to fall on the shoulders of the chinese and other asian pacific airlines but of course the situations are entirely changed it's now spread to europe and indeed america north america and it's having a very significant impact on airline operations around the world. the impact is affecting more or less all airlines i think have to be prepared for this what so it's so you're saying then it's going to be more than a $30000000000.00 impact or what sort of figure is are you forec