The 50 or so rabbis on this plane are flying around over Israel chanting prayers and blowing horns called 'shofas'. The purpose of this exercise is to stop the swine flu pandemic spreading in Israel. They call it H1N1 disease there as it would not be kosher to call it swine flu as pigs are just so unclean.
Perhaps they think the sound of the horns will resonate with the protein shell of the virus and scramble its innards. Seems unlikely in a sealed pressurised box travelling at 500mph.
Maybe the prayers will be heard and god will zap the virus over Israel or make them all immune or something. Maybe it's just the only way to get cabin crew to bring an iced tea. Who knows?
Perhaps someone should just tell them all about the germ theory of disease and try to help their poor deluded minds recover from their addiction to bronze age mythology and tell them to develop a vaccine like the rest of us.