Two Danish backpackers who died in a mass poisoning in Laos messaged a friend to say they had been vomiting blood for hours before they went eerily silent, and were later found deceased.The two women drank from the same batch of alcohol thought to have been spiked with methanol that also left four others dead, including Australian teenagers Holly Bowles and Bianca Jones, while another 11 foreign nationals remain in hospital fighting for life.Anne-Sofie Orkild Coyman, 20, and Freja Vennervald Sorensen, 21, originally from the Denmark town of Roskilde, had been backpacking across south east Asia in what was supposed to be the trip of a lifetime.They were staying at Nana Backpackers in Vang Vieng, Laos, and had been planning to meet up with a Belgian man they had met earlier in their travels.The two Danes told their friend they had been puking blood for hours on end and then went quiet, prompting him to spend several days searching for them before learning they had died.It prompted a warning online, with a friend of the Belgian backpacker sharing his anguish at the situation.“The past few days I have been busy with a Belgian friend looking for two girls he travelled with,” the man wrote.“For more than 72 hours, no contact could be made while they had agreed to meet in Vang Vieng.‘The strange thing was that their last message was that they had both been vomiting blood for 13 hours … They have both since died.”Two Danish backpackers who died in a mass poisoning in Laos messaged a friend to say they had been vomiting blood for hours before they went eerily silent, and were later found deceased.The two women drank from the same batch of alcohol thought to have been spiked with methanol that also left four others dead, including Australian teenagers Holly Bowles and Bianca Jones, while another 11 foreign nationals remain in hospital fighting for life.Anne-Sofie Orkild Coyman, 20, and Freja Vennervald Sorensen, 21, originally from the Denmark town of Roskilde, ha...