A sick woman in China who spat out blood on an underground train then wiped the bloodstain from the floor with her coat has received 400,000 yuan (US$58,000) in donations from internet users moved by her plight.A video of the woman taken by a passenger on a train in Chongqing, southwestern China on March 23 has gone viral on mainland social media, Jiupai News reported.Hu Xinyao, 23, has a rare vascular condition called ANCA-associated vasculitis.AdvertisementShe was on her way to a hospital for an injection when she suddenly coughed up blood because of bleeding in her digestive tract.Hu Xinyao, above,…