In the monsoon season of August 2012 a small team of scientists travelled to southwest China to investigate a new and mysteriously lethal illness. After driving through terraced tea plantations, they reached their destination: an abandoned copper mine where — in white hazmat suits and respirator masks — they ventured into the darkness.
Instantly, they were struck by the stench. Overhead, bats roosted. Underfoot, rats and shrews scurried through thick layers of their droppings. It was a breeding ground for mutated micro-organisms and pathogens deadly to human beings. There was a reason to take extra care. Weeks earlier, six men who had entered the mine had been struck down by an illness that caused an uncontrollable pneumonia. Three of them died.
Today, as deaths from
