Roughly 5pm, February 21, 2003. Liu Jianlun checks in at the Metropole Hotel in Mong Kok. The 64-year-old doctor has just arrived from Guangdong, where patients have been flocking to his hospital with a mysterious pneumonia. While waiting for the lift, he has a coughing fit, spraying germs into the air and onto buttons. He shuffles to his room and curls up in bed with a fever. Over the next few hours, guests stream in and out of the busy hotel, touching the surfaces Liu has touched, breathing the air he breathed. By the time the doctor dies in hospital a few days later, other Metropole guests are falling sick, though some have since travelled to Singapore, Vietnam, Ireland, Canada and the US, unwittingly unleashing severe acute respiratory syndrome, or…
